161946676 has 12 divisors (see below), whose sum is σ = 285446560. Its totient is φ = 80390520.

The previous prime is 161946649. The next prime is 161946683. The reversal of 161946676 is 676649161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145080 + ... + 146191.

Almost surely, 2^161946676 is an apocalyptic number.

It is an amenable number.

161946676 is a deficient number, since it is larger than the sum of its proper divisors (123499884).

161946676 is a wasteful number, since it uses less digits than its factorization.

161946676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291414 (or 291412 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 161946676 is about 12725.8271243955. The cubic root of 161946676 is about 545.0763588546.

The spelling of 161946676 in words is "one hundred sixty-one million, nine hundred forty-six thousand, six hundred seventy-six".