166526872 has 8 divisors (see below), whose sum is σ = 312237900. Its totient is φ = 83263432.

The previous prime is 166526869. The next prime is 166526873. The reversal of 166526872 is 278625661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166526873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10407922 + ... + 10407937.

Almost surely, 2^166526872 is an apocalyptic number.

It is an amenable number.

166526872 is a deficient number, since it is larger than the sum of its proper divisors (145711028).

166526872 is a wasteful number, since it uses less digits than its factorization.

166526872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20815865 (or 20815861 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 166526872 is about 12904.5291274033. The cubic root of 166526872 is about 550.1673011706.

The spelling of 166526872 in words is "one hundred sixty-six million, five hundred twenty-six thousand, eight hundred seventy-two".