118812015641 has 16 divisors (see below), whose sum is σ = 131906641536. Its totient is φ = 106110480000.

The previous prime is 118812015611. The next prime is 118812015697. The reversal of 118812015641 is 146510218811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118812015641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118812015595 and 118812015604.

It is not an unprimeable number, because it can be changed into a prime (118812015611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51230 + ... + 490151.

It is an arithmetic number, because the mean of its divisors is an integer number (8244165096).

Almost surely, 2^118812015641 is an apocalyptic number.

118812015641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118812015641 is a deficient number, since it is larger than the sum of its proper divisors (13094625895).

118812015641 is a wasteful number, since it uses less digits than its factorization.

118812015641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541744.

The product of its (nonzero) digits is 15360, while the sum is 38.

The spelling of 118812015641 in words is "one hundred eighteen billion, eight hundred twelve million, fifteen thousand, six hundred forty-one".