167656399980 has 48 divisors (see below), whose sum is σ = 469597171680. Its totient is φ = 44693206528.

The previous prime is 167656399979. The next prime is 167656400011. The reversal of 167656399980 is 89993656761.

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, 295065 + ... + 649904.

It is an arithmetic number, because the mean of its divisors is an integer number (9783274410).

Almost surely, 2^167656399980 is an apocalyptic number.

167656399980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

167656399980 is an abundant number, since it is smaller than the sum of its proper divisors (301940771700).

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

167656399980 is a wasteful number, since it uses less digits than its factorization.

167656399980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947938 (or 947936 counting only the distinct ones).

The product of its (nonzero) digits is 132269760, while the sum is 69.

The spelling of 167656399980 in words is "one hundred sixty-seven billion, six hundred fifty-six million, three hundred ninety-nine thousand, nine hundred eighty".