161502196959 has 12 divisors (see below), whose sum is σ = 240806143552. Its totient is φ = 104194965600.

The previous prime is 161502196937. The next prime is 161502196967. The reversal of 161502196959 is 959691205161.

161502196959 is a `hidden beast` number, since 1 + 61 + 502 + 19 + 69 + 5 + 9 = 666.

It is not a de Polignac number, because 161502196959 - 2²⁰ = 161501148383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161502196909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289430182 + ... + 289430739.

Almost surely, 2^161502196959 is an apocalyptic number.

161502196959 is a deficient number, since it is larger than the sum of its proper divisors (79303946593).

161502196959 is a wasteful number, since it uses less digits than its factorization.

161502196959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578860958 (or 578860955 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 54.

The spelling of 161502196959 in words is "one hundred sixty-one billion, five hundred two million, one hundred ninety-six thousand, nine hundred fifty-nine".