16624433860 has 72 divisors (see below), whose sum is σ = 37324175616. Its totient is φ = 6213164160.

The previous prime is 16624433843. The next prime is 16624433867. The reversal of 16624433860 is 6833442661.

It is not an unprimeable number, because it can be changed into a prime (16624433867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505479 + ... + 537361.

It is an arithmetic number, because the mean of its divisors is an integer number (518391328).

Almost surely, 2^16624433860 is an apocalyptic number.

16624433860 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 16624433860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18662087808).

16624433860 is an abundant number, since it is smaller than the sum of its proper divisors (20699741756).

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

16624433860 is a wasteful number, since it uses less digits than its factorization.

16624433860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31981 (or 31950 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 16624433860 in words is "sixteen billion, six hundred twenty-four million, four hundred thirty-three thousand, eight hundred sixty".