118866081945 has 32 divisors (see below), whose sum is σ = 208286870400. Its totient is φ = 57526838784.

The previous prime is 118866081869. The next prime is 118866082031. The reversal of 118866081945 is 549180668811.

It is not a de Polignac number, because 118866081945 - 2⁸ = 118866081689 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5154340 + ... + 5177349.

It is an arithmetic number, because the mean of its divisors is an integer number (6508964700).

Almost surely, 2^118866081945 is an apocalyptic number.

118866081945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118866081945 is a deficient number, since it is larger than the sum of its proper divisors (89420788455).

118866081945 is a wasteful number, since it uses less digits than its factorization.

118866081945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331769.

The product of its (nonzero) digits is 3317760, while the sum is 57.

The spelling of 118866081945 in words is "one hundred eighteen billion, eight hundred sixty-six million, eighty-one thousand, nine hundred forty-five".