65238522672 has 40 divisors (see below), whose sum is σ = 170906561280. Its totient is φ = 21439888960.

The previous prime is 65238522659. The next prime is 65238522691. The reversal of 65238522672 is 27622583256.

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

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, 9567972 + ... + 9574787.

It is an arithmetic number, because the mean of its divisors is an integer number (4272664032).

Almost surely, 2^65238522672 is an apocalyptic number.

It is an amenable number.

65238522672 is an abundant number, since it is smaller than the sum of its proper divisors (105668038608).

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

65238522672 is a wasteful number, since it uses less digits than its factorization.

65238522672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19142841 (or 19142835 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The spelling of 65238522672 in words is "sixty-five billion, two hundred thirty-eight million, five hundred twenty-two thousand, six hundred seventy-two".