65515112053 has 4 divisors (see below), whose sum is σ = 65530215520. Its totient is φ = 65500008588.

The previous prime is 65515112021. The next prime is 65515112077. The reversal of 65515112053 is 35021151556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65515112053 - 2⁵ = 65515112021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65515112153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7545225 + ... + 7553902.

It is an arithmetic number, because the mean of its divisors is an integer number (16382553880).

Almost surely, 2^65515112053 is an apocalyptic number.

It is an amenable number.

65515112053 is a deficient number, since it is larger than the sum of its proper divisors (15103467).

65515112053 is a wasteful number, since it uses less digits than its factorization.

65515112053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103466.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 65515112053 in words is "sixty-five billion, five hundred fifteen million, one hundred twelve thousand, fifty-three".