166207252 has 24 divisors (see below), whose sum is σ = 293529600. Its totient is φ = 82346016.

The previous prime is 166207247. The next prime is 166207253. The reversal of 166207252 is 252702661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166207253) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 346749 + ... + 347227.

It is an arithmetic number, because the mean of its divisors is an integer number (12230400).

Almost surely, 2^166207252 is an apocalyptic number.

It is an amenable number.

166207252 is a deficient number, since it is larger than the sum of its proper divisors (127322348).

166207252 is a wasteful number, since it uses less digits than its factorization.

166207252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 166207252 is about 12892.1391553148. The cubic root of 166207252 is about 549.8150915603.

The spelling of 166207252 in words is "one hundred sixty-six million, two hundred seven thousand, two hundred fifty-two".