108720920880 has 960 divisors, whose sum is σ = 462354407424. Its totient is φ = 22505472000.

The previous prime is 108720920843. The next prime is 108720920881. The reversal of 108720920880 is 88029027801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (108720920881) 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, 73409740 + ... + 73411220.

Almost surely, 2^108720920880 is an apocalyptic number.

108720920880 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 108720920880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231177203712).

108720920880 is an abundant number, since it is smaller than the sum of its proper divisors (353633486544).

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

108720920880 is a wasteful number, since it uses less digits than its factorization.

108720920880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 108720920880 in words is "one hundred eight billion, seven hundred twenty million, nine hundred twenty thousand, eight hundred eighty".