161675196 has 12 divisors (see below), whose sum is σ = 377242152. Its totient is φ = 53891728.

The previous prime is 161675179. The next prime is 161675233. The reversal of 161675196 is 691576161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×161675196² = 52277738003276832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6736455 + ... + 6736478.

It is an arithmetic number, because the mean of its divisors is an integer number (31436846).

Almost surely, 2^161675196 is an apocalyptic number.

It is an amenable number.

161675196 is an abundant number, since it is smaller than the sum of its proper divisors (215566956).

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

161675196 is a wasteful number, since it uses less digits than its factorization.

161675196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472940 (or 13472938 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 161675196 is about 12715.1561531898. The cubic root of 161675196 is about 544.7716081426.

The spelling of 161675196 in words is "one hundred sixty-one million, six hundred seventy-five thousand, one hundred ninety-six".