166319368 has 8 divisors (see below), whose sum is σ = 311848830. Its totient is φ = 83159680.

The previous prime is 166319339. The next prime is 166319429. The reversal of 166319368 is 863913661.

It can be written as a sum of positive squares in only one way, i.e., 138250564 + 28068804 = 11758^2 + 5298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10394953 + ... + 10394968.

Almost surely, 2^166319368 is an apocalyptic number.

It is an amenable number.

166319368 is a deficient number, since it is larger than the sum of its proper divisors (145529462).

166319368 is a wasteful number, since it uses less digits than its factorization.

166319368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789927 (or 20789923 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The square root of 166319368 is about 12896.4866533487. The cubic root of 166319368 is about 549.9386906867.

The spelling of 166319368 in words is "one hundred sixty-six million, three hundred nineteen thousand, three hundred sixty-eight".