65972258328 has 32 divisors (see below), whose sum is σ = 165460988160. Its totient is φ = 21920040480.

The previous prime is 65972258279. The next prime is 65972258351. The reversal of 65972258328 is 82385227956.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 4411900 + ... + 4426827.

It is an arithmetic number, because the mean of its divisors is an integer number (5170655880).

Almost surely, 2^65972258328 is an apocalyptic number.

It is an amenable number.

65972258328 is an abundant number, since it is smaller than the sum of its proper divisors (99488729832).

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

65972258328 is a wasteful number, since it uses less digits than its factorization.

65972258328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839047 (or 8839043 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 65972258328 in words is "sixty-five billion, nine hundred seventy-two million, two hundred fifty-eight thousand, three hundred twenty-eight".