161086712 has 32 divisors (see below), whose sum is σ = 319107600. Its totient is φ = 76022784.

The previous prime is 161086669. The next prime is 161086721. The reversal of 161086712 is 217680161.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 42728 + ... + 46344.

Almost surely, 2^161086712 is an apocalyptic number.

It is an amenable number.

161086712 is a deficient number, since it is larger than the sum of its proper divisors (158020888).

161086712 is a wasteful number, since it uses less digits than its factorization.

161086712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3931 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 161086712 is about 12691.9940119746. The cubic root of 161086712 is about 544.1098304051.

The spelling of 161086712 in words is "one hundred sixty-one million, eighty-six thousand, seven hundred twelve".