65236646464 has 56 divisors (see below), whose sum is σ = 149529747168. Its totient is φ = 27908720640.

The previous prime is 65236646429. The next prime is 65236646467. The reversal of 65236646464 is 46464663256.

It is not an unprimeable number, because it can be changed into a prime (65236646467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2713494 + ... + 2737429.

Almost surely, 2^65236646464 is an apocalyptic number.

65236646464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65236646464 is an abundant number, since it is smaller than the sum of its proper divisors (84293100704).

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

65236646464 is a wasteful number, since it uses less digits than its factorization.

65236646464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450963 (or 5450953 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 52.

The spelling of 65236646464 in words is "sixty-five billion, two hundred thirty-six million, six hundred forty-six thousand, four hundred sixty-four".