166203452 has 6 divisors (see below), whose sum is σ = 290856048. Its totient is φ = 83101724.

The previous prime is 166203449. The next prime is 166203491. The reversal of 166203452 is 254302661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20775428 + ... + 20775435.

It is an arithmetic number, because the mean of its divisors is an integer number (48476008).

Almost surely, 2^166203452 is an apocalyptic number.

It is an amenable number.

166203452 is a deficient number, since it is larger than the sum of its proper divisors (124652596).

166203452 is a wasteful number, since it uses less digits than its factorization.

166203452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41550867 (or 41550865 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 166203452 is about 12891.9917778441. The cubic root of 166203452 is about 549.8109013836.

The spelling of 166203452 in words is "one hundred sixty-six million, two hundred three thousand, four hundred fifty-two".