166160312920 has 32 divisors (see below), whose sum is σ = 427269376800. Its totient is φ = 56969250048.

The previous prime is 166160312917. The next prime is 166160312921. The reversal of 166160312920 is 29213061661.

It is a super-4 number, since 4×166160312920⁴ (a number of 46 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166160312920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166160312921) 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, 296714565 + ... + 296715124.

It is an arithmetic number, because the mean of its divisors is an integer number (13352168025).

Almost surely, 2^166160312920 is an apocalyptic number.

166160312920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166160312920 is an abundant number, since it is smaller than the sum of its proper divisors (261109063880).

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

166160312920 is a wasteful number, since it uses less digits than its factorization.

166160312920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593429707 (or 593429703 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 166160312920 in words is "one hundred sixty-six billion, one hundred sixty million, three hundred twelve thousand, nine hundred twenty".