166323472 has 20 divisors (see below), whose sum is σ = 368287936. Its totient is φ = 71281440.

The previous prime is 166323449. The next prime is 166323481. The reversal of 166323472 is 274323661.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 742404 + ... + 742627.

Almost surely, 2^166323472 is an apocalyptic number.

It is an amenable number.

166323472 is an abundant number, since it is smaller than the sum of its proper divisors (201964464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166323472 is a wasteful number, since it uses less digits than its factorization.

166323472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485046 (or 1485040 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 166323472 is about 12896.6457654694. The cubic root of 166323472 is about 549.9432139719.

The spelling of 166323472 in words is "one hundred sixty-six million, three hundred twenty-three thousand, four hundred seventy-two".