115890065650 has 24 divisors (see below), whose sum is σ = 215793264240. Its totient is φ = 46304898960.

The previous prime is 115890065617. The next prime is 115890065653. The reversal of 115890065650 is 56560098511.

It is a super-2 number, since 2×115890065650² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115890065650.

It is not an unprimeable number, because it can be changed into a prime (115890065653) 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, 1232380 + ... + 1323079.

It is an arithmetic number, because the mean of its divisors is an integer number (8991386010).

Almost surely, 2^115890065650 is an apocalyptic number.

115890065650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115890065650 is a deficient number, since it is larger than the sum of its proper divisors (99903198590).

115890065650 is a wasteful number, since it uses less digits than its factorization.

115890065650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556378 (or 2556373 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 115890065650 in words is "one hundred fifteen billion, eight hundred ninety million, sixty-five thousand, six hundred fifty".