515155516051 has 16 divisors (see below), whose sum is σ = 563869077120. Its totient is φ = 466757565120.

The previous prime is 515155516037. The next prime is 515155516081. The reversal of 515155516051 is 150615551515.

It is a happy number.

It is not a de Polignac number, because 515155516051 - 2²⁵ = 515121961619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 515155515995 and 515155516013.

It is not an unprimeable number, because it can be changed into a prime (515155516081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5001396 + ... + 5103358.

It is an arithmetic number, because the mean of its divisors is an integer number (35241817320).

Almost surely, 2^515155516051 is an apocalyptic number.

515155516051 is a deficient number, since it is larger than the sum of its proper divisors (48713561069).

515155516051 is a wasteful number, since it uses less digits than its factorization.

515155516051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103506.

The product of its (nonzero) digits is 93750, while the sum is 40.

The spelling of 515155516051 in words is "five hundred fifteen billion, one hundred fifty-five million, five hundred sixteen thousand, fifty-one".