515115616015 has 64 divisors (see below), whose sum is σ = 831868756992. Its totient is φ = 295724390400.

The previous prime is 515115615943. The next prime is 515115616019. The reversal of 515115616015 is 510616511515.

It is not a de Polignac number, because 515115616015 - 2¹¹ = 515115613967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515115616019) 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 63 ways as a sum of consecutive naturals, for example, 2048320 + ... + 2286010.

It is an arithmetic number, because the mean of its divisors is an integer number (12997949328).

Almost surely, 2^515115616015 is an apocalyptic number.

515115616015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

515115616015 is a deficient number, since it is larger than the sum of its proper divisors (316753140977).

515115616015 is a wasteful number, since it uses less digits than its factorization.

515115616015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238160.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 515115616015 in words is "five hundred fifteen billion, one hundred fifteen million, six hundred sixteen thousand, fifteen".