118081660 has 24 divisors (see below), whose sum is σ = 262558800. Its totient is φ = 44454144.

The previous prime is 118081651. The next prime is 118081673. The reversal of 118081660 is 66180811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173310 + ... + 173989.

It is an arithmetic number, because the mean of its divisors is an integer number (10939950).

Almost surely, 2^118081660 is an apocalyptic number.

118081660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118081660 is an abundant number, since it is smaller than the sum of its proper divisors (144477140).

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

118081660 is a wasteful number, since it uses less digits than its factorization.

118081660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347325 (or 347323 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 118081660 is about 10866.5385473020. The cubic root of 118081660 is about 490.5999315629.

The spelling of 118081660 in words is "one hundred eighteen million, eighty-one thousand, six hundred sixty".