108990692608 has 72 divisors (see below), whose sum is σ = 248912858432. Its totient is φ = 46658101248.

The previous prime is 108990692593. The next prime is 108990692611. The reversal of 108990692608 is 806296099801.

It is a congruent number.

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, 1591816 + ... + 1658872.

Almost surely, 2^108990692608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108990692608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124456429216).

108990692608 is an abundant number, since it is smaller than the sum of its proper divisors (139922165824).

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

108990692608 is an frugal number, since it uses more digits than its factorization.

108990692608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67987 (or 67973 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 108990692608 in words is "one hundred eight billion, nine hundred ninety million, six hundred ninety-two thousand, six hundred eight".