161476565399 has 2 divisors, whose sum is σ = 161476565400. Its totient is φ = 161476565398.

The previous prime is 161476565377. The next prime is 161476565423. The reversal of 161476565399 is 993565674161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161476565399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161476565309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80738282699 + 80738282700.

It is an arithmetic number, because the mean of its divisors is an integer number (80738282700).

Almost surely, 2^161476565399 is an apocalyptic number.

161476565399 is a deficient number, since it is larger than the sum of its proper divisors (1).

161476565399 is an equidigital number, since it uses as much as digits as its factorization.

161476565399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36741600, while the sum is 62.

The spelling of 161476565399 in words is "one hundred sixty-one billion, four hundred seventy-six million, five hundred sixty-five thousand, three hundred ninety-nine".