118309810650 has 48 divisors (see below), whose sum is σ = 301338299424. Its totient is φ = 30696598080.

The previous prime is 118309810643. The next prime is 118309810651. The reversal of 118309810650 is 56018903811.

It is a super-2 number, since 2×118309810650² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118309810651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10652992 + ... + 10664091.

It is an arithmetic number, because the mean of its divisors is an integer number (6277881238).

Almost surely, 2^118309810650 is an apocalyptic number.

118309810650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118309810650 is an abundant number, since it is smaller than the sum of its proper divisors (183028488774).

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

118309810650 is a wasteful number, since it uses less digits than its factorization.

118309810650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21317135 (or 21317130 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 118309810650 in words is "one hundred eighteen billion, three hundred nine million, eight hundred ten thousand, six hundred fifty".