166660712 has 16 divisors (see below), whose sum is σ = 322569600. Its totient is φ = 80642160.

The previous prime is 166660699. The next prime is 166660717. The reversal of 166660712 is 217066661.

166660712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (166660717) 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, 335762 + ... + 336257.

It is an arithmetic number, because the mean of its divisors is an integer number (20160600).

Almost surely, 2^166660712 is an apocalyptic number.

It is an amenable number.

166660712 is a deficient number, since it is larger than the sum of its proper divisors (155908888).

166660712 is a wasteful number, since it uses less digits than its factorization.

166660712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672056 (or 672052 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 166660712 is about 12909.7138620498. The cubic root of 166660712 is about 550.3146541123.

The spelling of 166660712 in words is "one hundred sixty-six million, six hundred sixty thousand, seven hundred twelve".