65515112052 has 48 divisors (see below), whose sum is σ = 167418041280. Its totient is φ = 19816823808.

The previous prime is 65515112021. The next prime is 65515112077. The reversal of 65515112052 is 25021151556.

It is a super-2 number, since 2×65515112052² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3549853 + ... + 3568260.

It is an arithmetic number, because the mean of its divisors is an integer number (3487875860).

Almost surely, 2^65515112052 is an apocalyptic number.

It is an amenable number.

65515112052 is an abundant number, since it is smaller than the sum of its proper divisors (101902929228).

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

65515112052 is a wasteful number, since it uses less digits than its factorization.

65515112052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118192 (or 7118190 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 65515112052 in words is "sixty-five billion, five hundred fifteen million, one hundred twelve thousand, fifty-two".