115161516556 has 12 divisors (see below), whose sum is σ = 201998090392. Its totient is φ = 57447776448.

The previous prime is 115161516527. The next prime is 115161516571. The reversal of 115161516556 is 655615161511.

It is a super-2 number, since 2×115161516556² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33243510 + ... + 33246973.

Almost surely, 2^115161516556 is an apocalyptic number.

It is an amenable number.

115161516556 is a deficient number, since it is larger than the sum of its proper divisors (86836573836).

115161516556 is a wasteful number, since it uses less digits than its factorization.

115161516556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66490920 (or 66490918 counting only the distinct ones).

The product of its digits is 135000, while the sum is 43.

The spelling of 115161516556 in words is "one hundred fifteen billion, one hundred sixty-one million, five hundred sixteen thousand, five hundred fifty-six".