16404979200 has 120 divisors (see below), whose sum is σ = 54192950328. Its totient is φ = 4374650880.

The previous prime is 16404979189. The next prime is 16404979207. The reversal of 16404979200 is 297940461.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404979207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175207 + ... + 252006.

Almost surely, 2^16404979200 is an apocalyptic number.

16404979200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16404979200 is an abundant number, since it is smaller than the sum of its proper divisors (37787971128).

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

16404979200 is an equidigital number, since it uses as much as digits as its factorization.

16404979200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427244 (or 427223 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 16404979200 in words is "sixteen billion, four hundred four million, nine hundred seventy-nine thousand, two hundred".