7715616516 has 72 divisors (see below), whose sum is σ = 19718803104. Its totient is φ = 2543598720.

The previous prime is 7715616497. The next prime is 7715616541. The reversal of 7715616516 is 6156165177.

7715616516 is a `hidden beast` number, since 7 + 7 + 15 + 616 + 5 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1473495 + ... + 1478721.

Almost surely, 2^7715616516 is an apocalyptic number.

It is an amenable number.

7715616516 is an abundant number, since it is smaller than the sum of its proper divisors (12003186588).

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

7715616516 is a wasteful number, since it uses less digits than its factorization.

7715616516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5676 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 7715616516 is about 87838.5821606884. The cubic root of 7715616516 is about 1976.0148832794.

The spelling of 7715616516 in words is "seven billion, seven hundred fifteen million, six hundred sixteen thousand, five hundred sixteen".