109620965520 has 320 divisors, whose sum is σ = 415564473600. Its totient is φ = 26338959360.

The previous prime is 109620965507. The next prime is 109620965539. The reversal of 109620965520 is 25569026901.

It is a happy number.

109620965520 is a `hidden beast` number, since 1 + 0 + 9 + 6 + 2 + 0 + 96 + 552 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2664466 + ... + 2705294.

It is an arithmetic number, because the mean of its divisors is an integer number (1298638980).

Almost surely, 2^109620965520 is an apocalyptic number.

109620965520 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 109620965520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207782236800).

109620965520 is an abundant number, since it is smaller than the sum of its proper divisors (305943508080).

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

109620965520 is a wasteful number, since it uses less digits than its factorization.

109620965520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40975 (or 40963 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 109620965520 in words is "one hundred nine billion, six hundred twenty million, nine hundred sixty-five thousand, five hundred twenty".