166031612 has 12 divisors (see below), whose sum is σ = 300574680. Its totient is φ = 80153136.

The previous prime is 166031611. The next prime is 166031647. The reversal of 166031612 is 216130661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166031611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715538 + ... + 715769.

It is an arithmetic number, because the mean of its divisors is an integer number (25047890).

Almost surely, 2^166031612 is an apocalyptic number.

It is an amenable number.

166031612 is a deficient number, since it is larger than the sum of its proper divisors (134543068).

166031612 is a wasteful number, since it uses less digits than its factorization.

166031612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431340 (or 1431338 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 166031612 is about 12885.3254518464. The cubic root of 166031612 is about 549.6213503963.

The spelling of 166031612 in words is "one hundred sixty-six million, thirty-one thousand, six hundred twelve".