16669385900 has 72 divisors (see below), whose sum is σ = 38106936000. Its totient is φ = 6311753280.

The previous prime is 16669385899. The next prime is 16669385911. The reversal of 16669385900 is 958396661.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3073391 + ... + 3078809.

It is an arithmetic number, because the mean of its divisors is an integer number (529263000).

Almost surely, 2^16669385900 is an apocalyptic number.

16669385900 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 16669385900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19053468000).

16669385900 is an abundant number, since it is smaller than the sum of its proper divisors (21437550100).

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

16669385900 is a wasteful number, since it uses less digits than its factorization.

16669385900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071 (or 7064 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 16669385900 in words is "sixteen billion, six hundred sixty-nine million, three hundred eighty-five thousand, nine hundred".