16369403904 has 432 divisors, whose sum is σ = 57527870400. Its totient is φ = 4391829504.

The previous prime is 16369403903. The next prime is 16369403909. The reversal of 16369403904 is 40930496361.

16369403904 is a `hidden beast` number, since 1 + 636 + 9 + 4 + 0 + 3 + 9 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16369403904.

It is not an unprimeable number, because it can be changed into a prime (16369403903) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37287717 + ... + 37288155.

Almost surely, 2^16369403904 is an apocalyptic number.

16369403904 is a gapful number since it is divisible by the number (14) 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 16369403904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28763935200).

16369403904 is an abundant number, since it is smaller than the sum of its proper divisors (41158466496).

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

16369403904 is a wasteful number, since it uses less digits than its factorization.

16369403904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 16369403904 in words is "sixteen billion, three hundred sixty-nine million, four hundred three thousand, nine hundred four".