65665046272 has 36 divisors (see below), whose sum is σ = 149798390896. Its totient is φ = 28142161920.

The previous prime is 65665046201. The next prime is 65665046327. The reversal of 65665046272 is 27264056656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18319929 + ... + 18323512.

Almost surely, 2^65665046272 is an apocalyptic number.

It is an amenable number.

65665046272 is an abundant number, since it is smaller than the sum of its proper divisors (84133344624).

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

65665046272 is an equidigital number, since it uses as much as digits as its factorization.

65665046272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36643464 (or 36643450 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 65665046272 in words is "sixty-five billion, six hundred sixty-five million, forty-six thousand, two hundred seventy-two".