161477971183 has 2 divisors, whose sum is σ = 161477971184. Its totient is φ = 161477971182.

The previous prime is 161477971163. The next prime is 161477971231. The reversal of 161477971183 is 381179774161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161477971183 - 2⁹ = 161477970671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161477971133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80738985591 + 80738985592.

It is an arithmetic number, because the mean of its divisors is an integer number (80738985592).

Almost surely, 2^161477971183 is an apocalyptic number.

161477971183 is a deficient number, since it is larger than the sum of its proper divisors (1).

161477971183 is an equidigital number, since it uses as much as digits as its factorization.

161477971183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 55.

The spelling of 161477971183 in words is "one hundred sixty-one billion, four hundred seventy-seven million, nine hundred seventy-one thousand, one hundred eighty-three".