118132901820 has 48 divisors (see below), whose sum is σ = 367524585120. Its totient is φ = 31502107008.

The previous prime is 118132901801. The next prime is 118132901837. The reversal of 118132901820 is 28109231811.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109381777 + ... + 109382856.

It is an arithmetic number, because the mean of its divisors is an integer number (7656762190).

Almost surely, 2^118132901820 is an apocalyptic number.

118132901820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118132901820 is an abundant number, since it is smaller than the sum of its proper divisors (249391683300).

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

118132901820 is a wasteful number, since it uses less digits than its factorization.

118132901820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218764651 (or 218764643 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The spelling of 118132901820 in words is "one hundred eighteen billion, one hundred thirty-two million, nine hundred one thousand, eight hundred twenty".