118001680 has 20 divisors (see below), whose sum is σ = 274354092. Its totient is φ = 47200640.

The previous prime is 118001677. The next prime is 118001701. The reversal of 118001680 is 86100811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91623184 + 26378496 = 9572^2 + 5136^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737431 + ... + 737590.

Almost surely, 2^118001680 is an apocalyptic number.

118001680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118001680 is an abundant number, since it is smaller than the sum of its proper divisors (156352412).

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

118001680 is a wasteful number, since it uses less digits than its factorization.

118001680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475034 (or 1475028 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 118001680 is about 10862.8578191929. The cubic root of 118001680 is about 490.4891408754.

The spelling of 118001680 in words is "one hundred eighteen million, one thousand, six hundred eighty".