16399255800 has 96 divisors (see below), whose sum is σ = 50857213680. Its totient is φ = 4371456000.

The previous prime is 16399255777. The next prime is 16399255801. The reversal of 16399255800 is 855299361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16399255800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16399255801) 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, 2877754 + ... + 2883446.

Almost surely, 2^16399255800 is an apocalyptic number.

16399255800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16399255800 is an abundant number, since it is smaller than the sum of its proper divisors (34457957880).

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

16399255800 is a wasteful number, since it uses less digits than its factorization.

16399255800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10513 (or 10504 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 16399255800 in words is "sixteen billion, three hundred ninety-nine million, two hundred fifty-five thousand, eight hundred".