16804206890940 has 48 divisors (see below), whose sum is σ = 53773462052352. Its totient is φ = 3840961574976.

The previous prime is 16804206890929. The next prime is 16804206890959. The reversal of 16804206890940 is 4909860240861.

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, 20005007784 + ... + 20005008623.

It is an arithmetic number, because the mean of its divisors is an integer number (1120280459424).

Almost surely, 2^{16804206890940} is an apocalyptic number.

16804206890940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16804206890940 is an abundant number, since it is smaller than the sum of its proper divisors (36969255161412).

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

16804206890940 is a wasteful number, since it uses less digits than its factorization.

16804206890940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40010016426 (or 40010016424 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 16804206890940 in words is "sixteen trillion, eight hundred four billion, two hundred six million, eight hundred ninety thousand, nine hundred forty".