65625052656 has 40 divisors (see below), whose sum is σ = 169549621840. Its totient is φ = 21872664576.

The previous prime is 65625052637. The next prime is 65625052663.

65625052656 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65625052656² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 410160 + ... + 547248.

It is an arithmetic number, because the mean of its divisors is an integer number (4238740546).

Almost surely, 2^65625052656 is an apocalyptic number.

It is an amenable number.

65625052656 is an abundant number, since it is smaller than the sum of its proper divisors (103924569184).

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

65625052656 is a wasteful number, since it uses less digits than its factorization.

65625052656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147073 (or 147067 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

Subtracting from 65625052656 its product of nonzero digits (3240000), we obtain a palindrome (65621812656).

The spelling of 65625052656 in words is "sixty-five billion, six hundred twenty-five million, fifty-two thousand, six hundred fifty-six".