161477267179 has 2 divisors, whose sum is σ = 161477267180. Its totient is φ = 161477267178.

The previous prime is 161477267167. The next prime is 161477267201. The reversal of 161477267179 is 971762774161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161477267179 is a prime.

It is not a weakly prime, because it can be changed into another prime (161477267129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80738633589 + 80738633590.

It is an arithmetic number, because the mean of its divisors is an integer number (80738633590).

Almost surely, 2^161477267179 is an apocalyptic number.

161477267179 is a deficient number, since it is larger than the sum of its proper divisors (1).

161477267179 is an equidigital number, since it uses as much as digits as its factorization.

161477267179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6223392, while the sum is 58.

The spelling of 161477267179 in words is "one hundred sixty-one billion, four hundred seventy-seven million, two hundred sixty-seven thousand, one hundred seventy-nine".