16779150591191 has 2 divisors, whose sum is σ = 16779150591192. Its totient is φ = 16779150591190.

The previous prime is 16779150591187. The next prime is 16779150591211. The reversal of 16779150591191 is 19119505197761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16779150591191 - 2² = 16779150591187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16779150591691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8389575295595 + 8389575295596.

It is an arithmetic number, because the mean of its divisors is an integer number (8389575295596).

Almost surely, 2^{16779150591191} is an apocalyptic number.

16779150591191 is a deficient number, since it is larger than the sum of its proper divisors (1).

16779150591191 is an equidigital number, since it uses as much as digits as its factorization.

16779150591191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5358150, while the sum is 62.

The spelling of 16779150591191 in words is "sixteen trillion, seven hundred seventy-nine billion, one hundred fifty million, five hundred ninety-one thousand, one hundred ninety-one".