5051312320065 has 64 divisors (see below), whose sum is σ = 8951901235200. Its totient is φ = 2411631383040.

The previous prime is 5051312320051. The next prime is 5051312320099. The reversal of 5051312320065 is 5600232131505.

It is a happy number.

It is not a de Polignac number, because 5051312320065 - 2⁴ = 5051312320049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28843636 + ... + 29018234.

It is an arithmetic number, because the mean of its divisors is an integer number (139873456800).

Almost surely, 2^{5051312320065} is an apocalyptic number.

5051312320065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5051312320065 is a deficient number, since it is larger than the sum of its proper divisors (3900588915135).

5051312320065 is a wasteful number, since it uses less digits than its factorization.

5051312320065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177302.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 5051312320065 in words is "five trillion, fifty-one billion, three hundred twelve million, three hundred twenty thousand, sixty-five".