168913476921600 has 216 divisors, whose sum is σ = 619388516354720. Its totient is φ = 45043593799680.

The previous prime is 168913476921599. The next prime is 168913476921643. The reversal of 168913476921600 is 6129674319861.

168913476921600 is a `hidden beast` number, since 1 + 6 + 8 + 9 + 13 + 4 + 7 + 6 + 9 + 2 + 1 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488581474 + ... + 488927073.

Almost surely, 2^{168913476921600} is an apocalyptic number.

168913476921600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168913476921600 is an abundant number, since it is smaller than the sum of its proper divisors (450475039433120).

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

168913476921600 is an equidigital number, since it uses as much as digits as its factorization.

168913476921600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977508582 (or 977508557 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 168913476921600 in words is "one hundred sixty-eight trillion, nine hundred thirteen billion, four hundred seventy-six million, nine hundred twenty-one thousand, six hundred".