161799696342 has 32 divisors (see below), whose sum is σ = 369272584800. Its totient is φ = 52475576544.

The previous prime is 161799696323. The next prime is 161799696403. The reversal of 161799696342 is 243696997161.

161799696342 is a `hidden beast` number, since 1 + 617 + 9 + 9 + 6 + 9 + 6 + 3 + 4 + 2 = 666.

It is a super-3 number, since 3×161799696342³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161799696342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40488417 + ... + 40492412.

It is an arithmetic number, because the mean of its divisors is an integer number (11539768275).

Almost surely, 2^161799696342 is an apocalyptic number.

161799696342 is an abundant number, since it is smaller than the sum of its proper divisors (207472888458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161799696342 is a wasteful number, since it uses less digits than its factorization.

161799696342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80980877 (or 80980871 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

The spelling of 161799696342 in words is "one hundred sixty-one billion, seven hundred ninety-nine million, six hundred ninety-six thousand, three hundred forty-two".