65122791328 has 48 divisors (see below), whose sum is σ = 146543765760. Its totient is φ = 27906437376.

The previous prime is 65122791319. The next prime is 65122791359. The reversal of 65122791328 is 82319722156.

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, 3161350 + ... + 3181882.

It is an arithmetic number, because the mean of its divisors is an integer number (3052995120).

Almost surely, 2^65122791328 is an apocalyptic number.

It is an amenable number.

65122791328 is an abundant number, since it is smaller than the sum of its proper divisors (81420974432).

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

65122791328 is a wasteful number, since it uses less digits than its factorization.

65122791328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34709 (or 34701 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The spelling of 65122791328 in words is "sixty-five billion, one hundred twenty-two million, seven hundred ninety-one thousand, three hundred twenty-eight".