109988505553920 has 352 divisors, whose sum is σ = 402078200790528. Its totient is φ = 25138295734272.

The previous prime is 109988505553907. The next prime is 109988505553939. The reversal of 109988505553920 is 29355505889901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766199904 + ... + 1766262176.

Almost surely, 2^{109988505553920} is an apocalyptic number.

109988505553920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109988505553920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201039100395264).

109988505553920 is an abundant number, since it is smaller than the sum of its proper divisors (292089695236608).

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

109988505553920 is a wasteful number, since it uses less digits than its factorization.

109988505553920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78735 (or 78717 counting only the distinct ones).

The product of its (nonzero) digits is 174960000, while the sum is 69.

The spelling of 109988505553920 in words is "one hundred nine trillion, nine hundred eighty-eight billion, five hundred five million, five hundred fifty-three thousand, nine hundred twenty".