64622806960 has 20 divisors (see below), whose sum is σ = 150248026368. Its totient is φ = 25849122752.

The previous prime is 64622806951. The next prime is 64622806981. The reversal of 64622806960 is 6960822646.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×64622806960² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403892464 + ... + 403892623.

Almost surely, 2^64622806960 is an apocalyptic number.

It is an amenable number.

64622806960 is an abundant number, since it is smaller than the sum of its proper divisors (85625219408).

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

64622806960 is a wasteful number, since it uses less digits than its factorization.

64622806960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807785100 (or 807785094 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 64622806960 in words is "sixty-four billion, six hundred twenty-two million, eight hundred six thousand, nine hundred sixty".