166956716 has 6 divisors (see below), whose sum is σ = 292174260. Its totient is φ = 83478356.

The previous prime is 166956707. The next prime is 166956719. The reversal of 166956716 is 617659661.

It is a happy number.

166956716 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166956719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20869586 + ... + 20869593.

It is an arithmetic number, because the mean of its divisors is an integer number (48695710).

Almost surely, 2^166956716 is an apocalyptic number.

It is an amenable number.

166956716 is a deficient number, since it is larger than the sum of its proper divisors (125217544).

166956716 is a wasteful number, since it uses less digits than its factorization.

166956716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41739183 (or 41739181 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 166956716 is about 12921.1731665511. The cubic root of 166956716 is about 550.6402637360.

It can be divided in two parts, 1669 and 56716, that added together give a palindrome (58385).

The spelling of 166956716 in words is "one hundred sixty-six million, nine hundred fifty-six thousand, seven hundred sixteen".