115640016 has 20 divisors (see below), whose sum is σ = 298736832. Its totient is φ = 38546656.

The previous prime is 115640009. The next prime is 115640033. The reversal of 115640016 is 610046511.

It is a super-2 number, since 2×115640016² = 26745226600960512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 1204536 + ... + 1204631.

Almost surely, 2^115640016 is an apocalyptic number.

115640016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

115640016 is an abundant number, since it is smaller than the sum of its proper divisors (183096816).

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

115640016 is a wasteful number, since it uses less digits than its factorization.

115640016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409178 (or 2409172 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 115640016 is about 10753.6047909527. The cubic root of 115640016 is about 487.1948786269.

Adding to 115640016 its reverse (610046511), we get a palindrome (725686527).

The spelling of 115640016 in words is "one hundred fifteen million, six hundred forty thousand, sixteen".