64221191112960 has 216 divisors, whose sum is σ = 253941293511360. Its totient is φ = 14679129378816.

The previous prime is 64221191112941. The next prime is 64221191112973. The reversal of 64221191112960 is 6921119112246.

64221191112960 is a `hidden beast` number, since 6 + 422 + 1 + 191 + 11 + 29 + 6 + 0 = 666.

It is a super-2 number, since 2×64221191112960² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 398116230 + ... + 398277509.

Almost surely, 2^{64221191112960} is an apocalyptic number.

64221191112960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64221191112960 is an abundant number, since it is smaller than the sum of its proper divisors (189720102398400).

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

64221191112960 is a wasteful number, since it uses less digits than its factorization.

64221191112960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796393773 (or 796393756 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 64221191112960 in words is "sixty-four trillion, two hundred twenty-one billion, one hundred ninety-one million, one hundred twelve thousand, nine hundred sixty".