5115561516 has 36 divisors (see below), whose sum is σ = 13925696512. Its totient is φ = 1574018784.

The previous prime is 5115561509. The next prime is 5115561523. The reversal of 5115561516 is 6151655115.

It is a happy number.

5115561516 is a `hidden beast` number, since 51 + 1 + 556 + 1 + 51 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (5115561509) and next prime (5115561523).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5464876 + ... + 5465811.

Almost surely, 2^5115561516 is an apocalyptic number.

It is an amenable number.

5115561516 is an abundant number, since it is smaller than the sum of its proper divisors (8810134996).

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

5115561516 is a wasteful number, since it uses less digits than its factorization.

5115561516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10930710 (or 10930705 counting only the distinct ones).

The product of its digits is 22500, while the sum is 36.

The square root of 5115561516 is about 71523.1537056358. The cubic root of 5115561516 is about 1723.0495651283.

The spelling of 5115561516 in words is "five billion, one hundred fifteen million, five hundred sixty-one thousand, five hundred sixteen".