166677680460 has 48 divisors (see below), whose sum is σ = 466912051200. Its totient is φ = 44426948544.

The previous prime is 166677680453. The next prime is 166677680471. The reversal of 166677680460 is 64086776661.

It is a self number, because there is not a number n which added to its sum of digits gives 166677680460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506700 + ... + 768179.

It is an arithmetic number, because the mean of its divisors is an integer number (9727334400).

Almost surely, 2^166677680460 is an apocalyptic number.

166677680460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166677680460 is an abundant number, since it is smaller than the sum of its proper divisors (300234370740).

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

166677680460 is a wasteful number, since it uses less digits than its factorization.

166677680460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277070 (or 1277068 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 166677680460 in words is "one hundred sixty-six billion, six hundred seventy-seven million, six hundred eighty thousand, four hundred sixty".