16779897252886 has 16 divisors (see below), whose sum is σ = 26494917140160. Its totient is φ = 7948269623880.

The previous prime is 16779897252857. The next prime is 16779897252893. The reversal of 16779897252886 is 68825279897761.

It is a super-2 number, since 2×16779897252886² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165021 + ... + 5795431.

It is an arithmetic number, because the mean of its divisors is an integer number (1655932321260).

Almost surely, 2^{16779897252886} is an apocalyptic number.

16779897252886 is a deficient number, since it is larger than the sum of its proper divisors (9715019887274).

16779897252886 is a wasteful number, since it uses less digits than its factorization.

16779897252886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708859.

The product of its digits is 10241925120, while the sum is 85.

The spelling of 16779897252886 in words is "sixteen trillion, seven hundred seventy-nine billion, eight hundred ninety-seven million, two hundred fifty-two thousand, eight hundred eighty-six".