161696176808 has 32 divisors (see below), whose sum is σ = 305350440960. Its totient is φ = 80269963200.

The previous prime is 161696176769. The next prime is 161696176877. The reversal of 161696176808 is 808671696161.

It is a super-2 number, since 2×161696176808² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300441 + ... + 2369687.

It is an arithmetic number, because the mean of its divisors is an integer number (9542201280).

Almost surely, 2^161696176808 is an apocalyptic number.

It is an amenable number.

161696176808 is a deficient number, since it is larger than the sum of its proper divisors (143654264152).

161696176808 is a wasteful number, since it uses less digits than its factorization.

161696176808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337 (or 71333 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 161696176808 in words is "one hundred sixty-one billion, six hundred ninety-six million, one hundred seventy-six thousand, eight hundred eight".