109915660800 has 960 divisors, whose sum is σ = 455753865600. Its totient is φ = 25701580800.

The previous prime is 109915660793. The next prime is 109915660843. The reversal of 109915660800 is 8066519901.

109915660800 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 1 + 566 + 0 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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 95 ways as a sum of consecutive naturals, for example, 110245902 + ... + 110246898.

It is an arithmetic number, because the mean of its divisors is an integer number (474743610).

Almost surely, 2^109915660800 is an apocalyptic number.

109915660800 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 109915660800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227876932800).

109915660800 is an abundant number, since it is smaller than the sum of its proper divisors (345838204800).

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

109915660800 is a wasteful number, since it uses less digits than its factorization.

109915660800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 109915660800 in words is "one hundred nine billion, nine hundred fifteen million, six hundred sixty thousand, eight hundred".