| Base | Representation |
|---|---|
| bin | 1001101011010101011… |
| … | …0101100000010101000 |
| 3 | 120220010100022012110000 |
| 4 | 2122311112230002220 |
| 5 | 10210440323142104 |
| 6 | 204212544023000 |
| 7 | 15003602264340 |
| oct | 2326526540250 |
| 9 | 526110265400 |
| 10 | 166251380904 |
| 11 | 64563630164 |
| 12 | 28279301a60 |
| 13 | 128a643c78b |
| 14 | 8091c7bd20 |
| 15 | 44d06cd639 |
| hex | 26b55ac0a8 |
166251380904 has 160 divisors (see below), whose sum is σ = 532566302400. Its totient is φ = 47465948160.
The previous prime is 166251380899. The next prime is 166251380909. The reversal of 166251380904 is 409083152661.
166251380904 is a `hidden beast` number, since 1 + 6 + 625 + 13 + 8 + 0 + 9 + 0 + 4 = 666.
It is an interprime number because it is at equal distance from previous prime (166251380899) and next prime (166251380909).
It is a self number, because there is not a number n which added to its sum of digits gives 166251380904.
It is not an unprimeable number, because it can be changed into a prime (166251380909) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6605464 + ... + 6630584.
It is an arithmetic number, because the mean of its divisors is an integer number (3328539390).
Almost surely, 2166251380904 is an apocalyptic number.
166251380904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 166251380904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266283151200).
166251380904 is an abundant number, since it is smaller than the sum of its proper divisors (366314921496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
166251380904 is a wasteful number, since it uses less digits than its factorization.
166251380904 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26605 (or 26592 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 45.
The spelling of 166251380904 in words is "one hundred sixty-six billion, two hundred fifty-one million, three hundred eighty thousand, nine hundred four".
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