115566900 has 36 divisors (see below), whose sum is σ = 334374432. Its totient is φ = 30817760.

The previous prime is 115566883. The next prime is 115566907. The reversal of 115566900 is 9665511.

It is a super-2 number, since 2×115566900² = 26711416751220000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115566907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192312 + ... + 192911.

Almost surely, 2^115566900 is an apocalyptic number.

115566900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115566900 is an abundant number, since it is smaller than the sum of its proper divisors (218807532).

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

115566900 is a wasteful number, since it uses less digits than its factorization.

115566900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385240 (or 385233 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 115566900 is about 10750.2046492148. The cubic root of 115566900 is about 487.0921770069.

The spelling of 115566900 in words is "one hundred fifteen million, five hundred sixty-six thousand, nine hundred".