16220923908 has 96 divisors (see below), whose sum is σ = 43874208000. Its totient is φ = 4568610816.

The previous prime is 16220923877. The next prime is 16220923909. The reversal of 16220923908 is 80932902261.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 16220923908.

It is not an unprimeable number, because it can be changed into a prime (16220923909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2606016 + ... + 2612232.

It is an arithmetic number, because the mean of its divisors is an integer number (457023000).

Almost surely, 2^16220923908 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 16220923908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21937104000).

16220923908 is an abundant number, since it is smaller than the sum of its proper divisors (27653284092).

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

16220923908 is a wasteful number, since it uses less digits than its factorization.

16220923908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 16220923908 in words is "sixteen billion, two hundred twenty million, nine hundred twenty-three thousand, nine hundred eight".