65090866395872 has 48 divisors (see below), whose sum is σ = 131158082164032. Its totient is φ = 31783881438720.

The previous prime is 65090866395857. The next prime is 65090866395899. The reversal of 65090866395872 is 27859366809056.

It is a self number, because there is not a number n which added to its sum of digits gives 65090866395872.

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, 46246463 + ... + 47633150.

It is an arithmetic number, because the mean of its divisors is an integer number (2732460045084).

Almost surely, 2^{65090866395872} is an apocalyptic number.

It is an amenable number.

65090866395872 is an abundant number, since it is smaller than the sum of its proper divisors (66067215768160).

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

65090866395872 is a wasteful number, since it uses less digits than its factorization.

65090866395872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93880131 (or 93880123 counting only the distinct ones).

The product of its (nonzero) digits is 1175731200, while the sum is 74.

The spelling of 65090866395872 in words is "sixty-five trillion, ninety billion, eight hundred sixty-six million, three hundred ninety-five thousand, eight hundred seventy-two".