109898889520 has 960 divisors, whose sum is σ = 355870972800. Its totient is φ = 31213486080.

The previous prime is 109898889497. The next prime is 109898889523. The reversal of 109898889520 is 25988898901.

It is not an unprimeable number, because it can be changed into a prime (109898889523) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1505464204 + ... + 1505464276.

It is an arithmetic number, because the mean of its divisors is an integer number (370698930).

Almost surely, 2^109898889520 is an apocalyptic number.

109898889520 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 109898889520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177935486400).

109898889520 is an abundant number, since it is smaller than the sum of its proper divisors (245972083280).

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

109898889520 is a wasteful number, since it uses less digits than its factorization.

109898889520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 67.

The spelling of 109898889520 in words is "one hundred nine billion, eight hundred ninety-eight million, eight hundred eighty-nine thousand, five hundred twenty".