108539599820 has 24 divisors (see below), whose sum is σ = 233233932624. Its totient is φ = 42406168896.

The previous prime is 108539599811. The next prime is 108539599853. The reversal of 108539599820 is 28995935801.

It is a self number, because there is not a number n which added to its sum of digits gives 108539599820.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63103559 + ... + 63105278.

It is an arithmetic number, because the mean of its divisors is an integer number (9718080526).

Almost surely, 2^108539599820 is an apocalyptic number.

108539599820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108539599820 is an abundant number, since it is smaller than the sum of its proper divisors (124694332804).

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

108539599820 is a wasteful number, since it uses less digits than its factorization.

108539599820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126208889 (or 126208887 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 59.

The spelling of 108539599820 in words is "one hundred eight billion, five hundred thirty-nine million, five hundred ninety-nine thousand, eight hundred twenty".