166952673 has 6 divisors (see below), whose sum is σ = 241153874. Its totient is φ = 111301776.

The previous prime is 166952659. The next prime is 166952683. The reversal of 166952673 is 376259661.

It can be written as a sum of positive squares in only one way, i.e., 160959969 + 5992704 = 12687^2 + 2448^2 .

It is not a de Polignac number, because 166952673 - 2⁹ = 166952161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166952683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9275140 + ... + 9275157.

Almost surely, 2^166952673 is an apocalyptic number.

It is an amenable number.

166952673 is a deficient number, since it is larger than the sum of its proper divisors (74201201).

166952673 is a wasteful number, since it uses less digits than its factorization.

166952673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18550303 (or 18550300 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 166952673 is about 12921.0167169616. The cubic root of 166952673 is about 550.6358189581.

The spelling of 166952673 in words is "one hundred sixty-six million, nine hundred fifty-two thousand, six hundred seventy-three".