166072472 has 16 divisors (see below), whose sum is σ = 311569200. Its totient is φ = 82987360.

The previous prime is 166072469. The next prime is 166072477. The reversal of 166072472 is 274270661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166072477) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11222 + ... + 21402.

It is an arithmetic number, because the mean of its divisors is an integer number (19473075).

Almost surely, 2^166072472 is an apocalyptic number.

It is an amenable number.

166072472 is a deficient number, since it is larger than the sum of its proper divisors (145496728).

166072472 is a wasteful number, since it uses less digits than its factorization.

166072472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12226 (or 12222 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 166072472 is about 12886.9108788724. The cubic root of 166072472 is about 549.6664335507. Note that the first 3 decimals are identical.

The spelling of 166072472 in words is "one hundred sixty-six million, seventy-two thousand, four hundred seventy-two".