65515112055 has 48 divisors (see below), whose sum is σ = 117933079680. Its totient is φ = 33605074944.

The previous prime is 65515112021. The next prime is 65515112077. The reversal of 65515112055 is 55021151556.

65515112055 is a `hidden beast` number, since 6 + 551 + 51 + 1 + 2 + 0 + 55 = 666.

It is not a de Polignac number, because 65515112055 - 2⁷ = 65515111927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 237714 + ... + 433056.

It is an arithmetic number, because the mean of its divisors is an integer number (2456939160).

Almost surely, 2^65515112055 is an apocalyptic number.

65515112055 is a deficient number, since it is larger than the sum of its proper divisors (52417967625).

65515112055 is a wasteful number, since it uses less digits than its factorization.

65515112055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195640 (or 195637 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 65515112055 in words is "sixty-five billion, five hundred fifteen million, one hundred twelve thousand, fifty-five".