118219201920 has 160 divisors (see below), whose sum is σ = 422182300320. Its totient is φ = 31525106688.

The previous prime is 118219201909. The next prime is 118219201931. The reversal of 118219201920 is 29102912811.

It is an interprime number because it is at equal distance from previous prime (118219201909) and next prime (118219201931).

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1088392 + ... + 1192071.

It is an arithmetic number, because the mean of its divisors is an integer number (2638639377).

Almost surely, 2^118219201920 is an apocalyptic number.

118219201920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118219201920 is an abundant number, since it is smaller than the sum of its proper divisors (303963098400).

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

118219201920 is an equidigital number, since it uses as much as digits as its factorization.

118219201920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280494 (or 2280473 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 118219201920 in words is "one hundred eighteen billion, two hundred nineteen million, two hundred one thousand, nine hundred twenty".