65696688 has 60 divisors (see below), whose sum is σ = 189803328. Its totient is φ = 21191040.

The previous prime is 65696681. The next prime is 65696689. The reversal of 65696688 is 88669656.

It is not an unprimeable number, because it can be changed into a prime (65696681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2895 + ... + 11822.

Almost surely, 2^65696688 is an apocalyptic number.

It is an amenable number.

65696688 is an abundant number, since it is smaller than the sum of its proper divisors (124106640).

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

65696688 is a wasteful number, since it uses less digits than its factorization.

65696688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14762 (or 14753 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 65696688 is about 8105.3493447229. The cubic root of 65696688 is about 403.5039823085.

It can be divided in two parts, 656 and 96688, that added together give a square (97344 = 312²).

The spelling of 65696688 in words is "sixty-five million, six hundred ninety-six thousand, six hundred eighty-eight".