9915615008 has 48 divisors (see below), whose sum is σ = 21937075776. Its totient is φ = 4377457920.

The previous prime is 9915614981. The next prime is 9915615023. The reversal of 9915615008 is 8005165199.

It is a self number, because there is not a number n which added to its sum of digits gives 9915615008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508598 + ... + 527733.

It is an arithmetic number, because the mean of its divisors is an integer number (457022412).

Almost surely, 2^9915615008 is an apocalyptic number.

It is an amenable number.

9915615008 is an abundant number, since it is smaller than the sum of its proper divisors (12021460768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9915615008 is a wasteful number, since it uses less digits than its factorization.

9915615008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036377 (or 1036369 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 44.

The square root of 9915615008 is about 99577.1811611476. The cubic root of 9915615008 is about 2148.3574985795.

The spelling of 9915615008 in words is "nine billion, nine hundred fifteen million, six hundred fifteen thousand, eight".