115157183618 has 16 divisors (see below), whose sum is σ = 179834514360. Its totient is φ = 55254980736.

The previous prime is 115157183611. The next prime is 115157183681. The reversal of 115157183618 is 816381751511.

It can be written as a sum of positive squares in 4 ways, for example, as 113328509449 + 1828674169 = 336643^2 + 42763^2 .

It is a super-2 number, since 2×115157183618² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115157183611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10653353 + ... + 10664156.

Almost surely, 2^115157183618 is an apocalyptic number.

115157183618 is a deficient number, since it is larger than the sum of its proper divisors (64677330742).

115157183618 is a wasteful number, since it uses less digits than its factorization.

115157183618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21317621.

The product of its digits is 201600, while the sum is 47.

The spelling of 115157183618 in words is "one hundred fifteen billion, one hundred fifty-seven million, one hundred eighty-three thousand, six hundred eighteen".