161255467017 has 24 divisors (see below), whose sum is σ = 245427010400. Its totient is φ = 101744512128.

The previous prime is 161255466989. The next prime is 161255467039. The reversal of 161255467017 is 710764552161.

161255467017 is a `hidden beast` number, since 1 + 6 + 1 + 25 + 546 + 70 + 17 = 666.

It is not a de Polignac number, because 161255467017 - 2³² = 156960499721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161255467057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294763 + ... + 639840.

Almost surely, 2^161255467017 is an apocalyptic number.

It is an amenable number.

161255467017 is a deficient number, since it is larger than the sum of its proper divisors (84171543383).

161255467017 is a wasteful number, since it uses less digits than its factorization.

161255467017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935637 (or 935634 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 161255467017 in words is "one hundred sixty-one billion, two hundred fifty-five million, four hundred sixty-seven thousand, seventeen".