118961102161 has 16 divisors (see below), whose sum is σ = 130078461888. Its totient is φ = 107894404800.

The previous prime is 118961102149. The next prime is 118961102167. The reversal of 118961102161 is 161201169811.

It is a cyclic number.

It is not a de Polignac number, because 118961102161 - 2¹³ = 118961093969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118961102161.

It is not an unprimeable number, because it can be changed into a prime (118961102167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16488991 + ... + 16496203.

It is an arithmetic number, because the mean of its divisors is an integer number (8129903868).

Almost surely, 2^118961102161 is an apocalyptic number.

118961102161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118961102161 is a deficient number, since it is larger than the sum of its proper divisors (11117359727).

118961102161 is a wasteful number, since it uses less digits than its factorization.

118961102161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 5184, while the sum is 37.

It can be divided in two parts, 118961 and 102161, that added together give a palindrome (221122).

The spelling of 118961102161 in words is "one hundred eighteen billion, nine hundred sixty-one million, one hundred two thousand, one hundred sixty-one".