16779845491590 has 32 divisors (see below), whose sum is σ = 40271829939936. Its totient is φ = 4474603157760.

The previous prime is 16779845491589. The next prime is 16779845491657. The reversal of 16779845491590 is 9519454897761.

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, 5241810 + ... + 7812570.

It is an arithmetic number, because the mean of its divisors is an integer number (1258494685623).

Almost surely, 2^{16779845491590} is an apocalyptic number.

16779845491590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16779845491590 is an abundant number, since it is smaller than the sum of its proper divisors (23491984448346).

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

16779845491590 is a wasteful number, since it uses less digits than its factorization.

16779845491590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788344.

The product of its (nonzero) digits is 685843200, while the sum is 75.

The spelling of 16779845491590 in words is "sixteen trillion, seven hundred seventy-nine billion, eight hundred forty-five million, four hundred ninety-one thousand, five hundred ninety".