16644401160 has 64 divisors (see below), whose sum is σ = 51282763200. Its totient is φ = 4318546176.

The previous prime is 16644401153. The next prime is 16644401161. The reversal of 16644401160 is 6110444661.

It is not an unprimeable number, because it can be changed into a prime (16644401161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1869930 + ... + 1878809.

It is an arithmetic number, because the mean of its divisors is an integer number (801293175).

Almost surely, 2^16644401160 is an apocalyptic number.

16644401160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16644401160 is an abundant number, since it is smaller than the sum of its proper divisors (34638362040).

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

16644401160 is a wasteful number, since it uses less digits than its factorization.

16644401160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748790 (or 3748786 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 16644401160 in words is "sixteen billion, six hundred forty-four million, four hundred one thousand, one hundred sixty".