109565403904 has 144 divisors (see below), whose sum is σ = 247518180000. Its totient is φ = 47947612160.

The previous prime is 109565403889. The next prime is 109565403917. The reversal of 109565403904 is 409304565901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31765572 + ... + 31769020.

It is an arithmetic number, because the mean of its divisors is an integer number (1718876250).

Almost surely, 2^109565403904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109565403904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123759090000).

109565403904 is an abundant number, since it is smaller than the sum of its proper divisors (137952776096).

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

109565403904 is a wasteful number, since it uses less digits than its factorization.

109565403904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894 (or 3880 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 109565403904 in words is "one hundred nine billion, five hundred sixty-five million, four hundred three thousand, nine hundred four".