166432995492 has 24 divisors (see below), whose sum is σ = 391973039136. Its totient is φ = 54959181888.

The previous prime is 166432995467. The next prime is 166432995523. The reversal of 166432995492 is 294599234661.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64809073 + ... + 64811640.

It is an arithmetic number, because the mean of its divisors is an integer number (16332209964).

Almost surely, 2^166432995492 is an apocalyptic number.

166432995492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166432995492 is an abundant number, since it is smaller than the sum of its proper divisors (225540043644).

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

166432995492 is a wasteful number, since it uses less digits than its factorization.

166432995492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129620827 (or 129620825 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 60.

The spelling of 166432995492 in words is "one hundred sixty-six billion, four hundred thirty-two million, nine hundred ninety-five thousand, four hundred ninety-two".