118581651090 has 48 divisors (see below), whose sum is σ = 352356907968. Its totient is φ = 27104377248.

The previous prime is 118581651059. The next prime is 118581651101. The reversal of 118581651090 is 90156185811.

118581651090 is a `hidden beast` number, since 1 + 1 + 8 + 581 + 65 + 1 + 0 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94111792 + ... + 94113051.

It is an arithmetic number, because the mean of its divisors is an integer number (7340768916).

Almost surely, 2^118581651090 is an apocalyptic number.

118581651090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118581651090 is an abundant number, since it is smaller than the sum of its proper divisors (233775256878).

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

118581651090 is a wasteful number, since it uses less digits than its factorization.

118581651090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188224863 (or 188224860 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 45.

The spelling of 118581651090 in words is "one hundred eighteen billion, five hundred eighty-one million, six hundred fifty-one thousand, ninety".