64633600026552 has 32 divisors (see below), whose sum is σ = 161594233678080. Its totient is φ = 21543168860640.

The previous prime is 64633600026517. The next prime is 64633600026599. The reversal of 64633600026552 is 25562000633646.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84893218 + ... + 85651185.

It is an arithmetic number, because the mean of its divisors is an integer number (5049819802440).

Almost surely, 2^{64633600026552} is an apocalyptic number.

It is an amenable number.

64633600026552 is an abundant number, since it is smaller than the sum of its proper divisors (96960633651528).

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

64633600026552 is a wasteful number, since it uses less digits than its factorization.

64633600026552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170560203 (or 170560199 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 64633600026552 in words is "sixty-four trillion, six hundred thirty-three billion, six hundred million, twenty-six thousand, five hundred fifty-two".