990659110400 has 60 divisors (see below), whose sum is σ = 2454435372972. Its totient is φ = 396263639040.

The previous prime is 990659110307. The next prime is 990659110429. The reversal of 990659110400 is 4011956099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38684822 + ... + 38710421.

Almost surely, 2^990659110400 is an apocalyptic number.

It is an amenable number.

990659110400 is an abundant number, since it is smaller than the sum of its proper divisors (1463776262572).

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

990659110400 is an equidigital number, since it uses as much as digits as its factorization.

990659110400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77395271 (or 77395250 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 44.

The spelling of 990659110400 in words is "nine hundred ninety billion, six hundred fifty-nine million, one hundred ten thousand, four hundred".