166144568 has 8 divisors (see below), whose sum is σ = 311521080. Its totient is φ = 83072280.

The previous prime is 166144547. The next prime is 166144579. The reversal of 166144568 is 865441661.

166144568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10384028 + ... + 10384043.

It is an arithmetic number, because the mean of its divisors is an integer number (38940135).

Almost surely, 2^166144568 is an apocalyptic number.

It is an amenable number.

166144568 is a deficient number, since it is larger than the sum of its proper divisors (145376512).

166144568 is a wasteful number, since it uses less digits than its factorization.

166144568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20768077 (or 20768073 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 166144568 is about 12889.7078322202. The cubic root of 166144568 is about 549.7459631230.

The spelling of 166144568 in words is "one hundred sixty-six million, one hundred forty-four thousand, five hundred sixty-eight".