16575409837680 has 80 divisors (see below), whose sum is σ = 51402183097344. Its totient is φ = 4418525410560.

The previous prime is 16575409837633. The next prime is 16575409837691. The reversal of 16575409837680 is 8673890457561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×16575409837680² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11702824 + ... + 13042503.

Almost surely, 2^{16575409837680} is an apocalyptic number.

16575409837680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16575409837680 is an abundant number, since it is smaller than the sum of its proper divisors (34826773259664).

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

16575409837680 is a wasteful number, since it uses less digits than its factorization.

16575409837680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24748134 (or 24748128 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 69.

The spelling of 16575409837680 in words is "sixteen trillion, five hundred seventy-five billion, four hundred nine million, eight hundred thirty-seven thousand, six hundred eighty".