161103614473 has 2 divisors, whose sum is σ = 161103614474. Its totient is φ = 161103614472.

The previous prime is 161103614447. The next prime is 161103614489. The reversal of 161103614473 is 374416301161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134313454144 + 26790160329 = 366488^2 + 163677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161103614473 is a prime.

It is not a weakly prime, because it can be changed into another prime (161103614773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80551807236 + 80551807237.

It is an arithmetic number, because the mean of its divisors is an integer number (80551807237).

Almost surely, 2^161103614473 is an apocalyptic number.

It is an amenable number.

161103614473 is a deficient number, since it is larger than the sum of its proper divisors (1).

161103614473 is an equidigital number, since it uses as much as digits as its factorization.

161103614473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 161103614473 in words is "one hundred sixty-one billion, one hundred three million, six hundred fourteen thousand, four hundred seventy-three".