16204244640 has 96 divisors (see below), whose sum is σ = 51105479040. Its totient is φ = 4315874304.

The previous prime is 16204244627. The next prime is 16204244669. The reversal of 16204244640 is 4644240261.

It is a tau number, because it is divible by the number of its divisors (96).

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, 382602 + ... + 422838.

It is an arithmetic number, because the mean of its divisors is an integer number (532348740).

Almost surely, 2^16204244640 is an apocalyptic number.

16204244640 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 16204244640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25552739520).

16204244640 is an abundant number, since it is smaller than the sum of its proper divisors (34901234400).

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

16204244640 is a wasteful number, since it uses less digits than its factorization.

16204244640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41094 (or 41086 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The spelling of 16204244640 in words is "sixteen billion, two hundred four million, two hundred forty-four thousand, six hundred forty".