166818334850 has 24 divisors (see below), whose sum is σ = 313027972740. Its totient is φ = 66136824320.

The previous prime is 166818334829. The next prime is 166818334853. The reversal of 166818334850 is 58433818661.

166818334850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 32417642401 + 134400692449 = 180049^2 + 366607^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 166818334792 and 166818334801.

It is not an unprimeable number, because it can be changed into a prime (166818334853) 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 11 ways as a sum of consecutive naturals, for example, 14757035 + ... + 14768334.

Almost surely, 2^166818334850 is an apocalyptic number.

166818334850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166818334850 is a deficient number, since it is larger than the sum of its proper divisors (146209637890).

166818334850 is a wasteful number, since it uses less digits than its factorization.

166818334850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29525494 (or 29525489 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 166818334850 in words is "one hundred sixty-six billion, eight hundred eighteen million, three hundred thirty-four thousand, eight hundred fifty".