16997842400 has 144 divisors (see below), whose sum is σ = 51735438720. Its totient is φ = 5298009600.

The previous prime is 16997842397. The next prime is 16997842427. The reversal of 16997842400 is 424879961.

It is a super-3 number, since 3×16997842400³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

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, 76370 + ... + 199569.

It is an arithmetic number, because the mean of its divisors is an integer number (359273880).

Almost surely, 2^16997842400 is an apocalyptic number.

16997842400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16997842400 is an abundant number, since it is smaller than the sum of its proper divisors (34737596320).

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

16997842400 is a wasteful number, since it uses less digits than its factorization.

16997842400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275977 (or 275964 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 16997842400 in words is "sixteen billion, nine hundred ninety-seven million, eight hundred forty-two thousand, four hundred".