72515513330 has 64 divisors (see below), whose sum is σ = 142230816000. Its totient is φ = 26459433216.

The previous prime is 72515513311. The next prime is 72515513359. The reversal of 72515513330 is 3331551527.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6676184 + ... + 6687036.

It is an arithmetic number, because the mean of its divisors is an integer number (2222356500).

Almost surely, 2^72515513330 is an apocalyptic number.

72515513330 is a deficient number, since it is larger than the sum of its proper divisors (69715302670).

72515513330 is a wasteful number, since it uses less digits than its factorization.

72515513330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 47250, while the sum is 35.

The spelling of 72515513330 in words is "seventy-two billion, five hundred fifteen million, five hundred thirteen thousand, three hundred thirty".