64608621089232 has 240 divisors, whose sum is σ = 194356520136576. Its totient is φ = 18416585932800.

The previous prime is 64608621089167. The next prime is 64608621089269. The reversal of 64608621089232 is 23298012680646.

It is a super-2 number, since 2×64608621089232² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180606928 + ... + 180964304.

Almost surely, 2^{64608621089232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64608621089232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97178260068288).

64608621089232 is an abundant number, since it is smaller than the sum of its proper divisors (129747899047344).

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

64608621089232 is a wasteful number, since it uses less digits than its factorization.

64608621089232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359258 (or 359241 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 64608621089232 in words is "sixty-four trillion, six hundred eight billion, six hundred twenty-one million, eighty-nine thousand, two hundred thirty-two".