166677295491940 has 96 divisors (see below), whose sum is σ = 359205390028800. Its totient is φ = 64948885478400.

The previous prime is 166677295491907. The next prime is 166677295491983. The reversal of 166677295491940 is 49194592776661.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38349544 + ... + 42474016.

It is an arithmetic number, because the mean of its divisors is an integer number (3741722812800).

Almost surely, 2^{166677295491940} is an apocalyptic number.

166677295491940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166677295491940 is an abundant number, since it is smaller than the sum of its proper divisors (192528094536860).

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

166677295491940 is a wasteful number, since it uses less digits than its factorization.

166677295491940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124893 (or 4124891 counting only the distinct ones).

The product of its (nonzero) digits is 1234517760, while the sum is 76.

The spelling of 166677295491940 in words is "one hundred sixty-six trillion, six hundred seventy-seven billion, two hundred ninety-five million, four hundred ninety-one thousand, nine hundred forty".