16159993404 has 24 divisors (see below), whose sum is σ = 37718513280. Its totient is φ = 5384969904.

The previous prime is 16159993393. The next prime is 16159993439. The reversal of 16159993404 is 40439995161.

It is a super-2 number, since 2×16159993404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171784 + ... + 248655.

It is an arithmetic number, because the mean of its divisors is an integer number (1571604720).

Almost surely, 2^16159993404 is an apocalyptic number.

It is an amenable number.

16159993404 is an abundant number, since it is smaller than the sum of its proper divisors (21558519876).

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

16159993404 is a wasteful number, since it uses less digits than its factorization.

16159993404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423649 (or 423647 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 16159993404 in words is "sixteen billion, one hundred fifty-nine million, nine hundred ninety-three thousand, four hundred four".