65256632352 has 144 divisors (see below), whose sum is σ = 186545268000. Its totient is φ = 21638679552.

The previous prime is 65256632317. The next prime is 65256632369. The reversal of 65256632352 is 25323665256.

65256632352 is a `hidden beast` number, since 6 + 5 + 2 + 5 + 6 + 632 + 3 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 65256632298 and 65256632307.

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, 80662924 + ... + 80663732.

It is an arithmetic number, because the mean of its divisors is an integer number (1295453250).

Almost surely, 2^65256632352 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 65256632352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93272634000).

65256632352 is an abundant number, since it is smaller than the sum of its proper divisors (121288635648).

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

65256632352 is a wasteful number, since it uses less digits than its factorization.

65256632352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1932 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The spelling of 65256632352 in words is "sixty-five billion, two hundred fifty-six million, six hundred thirty-two thousand, three hundred fifty-two".