118211051808 has 48 divisors (see below), whose sum is σ = 344782236960. Its totient is φ = 39403683648.

The previous prime is 118211051801. The next prime is 118211051831. The reversal of 118211051808 is 808150112811.

It is a happy number.

118211051808 is a `hidden beast` number, since 118 + 21 + 1 + 0 + 518 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is not an unprimeable number, because it can be changed into a prime (118211051801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68408310 + ... + 68410037.

It is an arithmetic number, because the mean of its divisors is an integer number (7182963270).

Almost surely, 2^118211051808 is an apocalyptic number.

118211051808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

118211051808 is an abundant number, since it is smaller than the sum of its proper divisors (226571185152).

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

118211051808 is a wasteful number, since it uses less digits than its factorization.

118211051808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136818366 (or 136818352 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 36.

The spelling of 118211051808 in words is "one hundred eighteen billion, two hundred eleven million, fifty-one thousand, eight hundred eight".