166061668 has 12 divisors (see below), whose sum is σ = 299982592. Its totient is φ = 80352360.

The previous prime is 166061659. The next prime is 166061671. The reversal of 166061668 is 866160661.

It is a self number, because there is not a number n which added to its sum of digits gives 166061668.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669480 + ... + 669727.

Almost surely, 2^166061668 is an apocalyptic number.

It is an amenable number.

166061668 is a deficient number, since it is larger than the sum of its proper divisors (133920924).

166061668 is a wasteful number, since it uses less digits than its factorization.

166061668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339242 (or 1339240 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 166061668 is about 12886.4916870341. The cubic root of 166061668 is about 549.6545136042.

The spelling of 166061668 in words is "one hundred sixty-six million, sixty-one thousand, six hundred sixty-eight".