166833518336 has 72 divisors (see below), whose sum is σ = 348081753600. Its totient is φ = 79655054336.

The previous prime is 166833518317. The next prime is 166833518339. The reversal of 166833518336 is 633815338661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166833518339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3503261 + ... + 3550563.

It is an arithmetic number, because the mean of its divisors is an integer number (4834468800).

Almost surely, 2^166833518336 is an apocalyptic number.

166833518336 is a gapful number since it is divisible by the number (16) 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 166833518336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174040876800).

166833518336 is an abundant number, since it is smaller than the sum of its proper divisors (181248235264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166833518336 is an equidigital number, since it uses as much as digits as its factorization.

166833518336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47941 (or 47927 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 53.

The spelling of 166833518336 in words is "one hundred sixty-six billion, eight hundred thirty-three million, five hundred eighteen thousand, three hundred thirty-six".