16099942400 has 168 divisors, whose sum is σ = 40304801280. Its totient is φ = 6378946560.

The previous prime is 16099942387. The next prime is 16099942427. The reversal of 16099942400 is 424999061.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26009291 + ... + 26009909.

Almost surely, 2^16099942400 is an apocalyptic number.

16099942400 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 16099942400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20152400640).

16099942400 is an abundant number, since it is smaller than the sum of its proper divisors (24204858880).

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

16099942400 is an equidigital number, since it uses as much as digits as its factorization.

16099942400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 16099942400 in words is "sixteen billion, ninety-nine million, nine hundred forty-two thousand, four hundred".