166002472 has 16 divisors (see below), whose sum is σ = 316358100. Its totient is φ = 81640320.

The previous prime is 166002457. The next prime is 166002479. The reversal of 166002472 is 274200661.

It can be written as a sum of positive squares in 2 ways, for example, as 159921316 + 6081156 = 12646^2 + 2466^2 .

It is a super-2 number, since 2×166002472² = 55113641420221568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166002472.

It is not an unprimeable number, because it can be changed into a prime (166002479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169597 + ... + 170572.

Almost surely, 2^166002472 is an apocalyptic number.

It is an amenable number.

166002472 is a deficient number, since it is larger than the sum of its proper divisors (150355628).

166002472 is a wasteful number, since it uses less digits than its factorization.

166002472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340236 (or 340232 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 166002472 is about 12884.1946585730. The cubic root of 166002472 is about 549.5891940637.

The spelling of 166002472 in words is "one hundred sixty-six million, two thousand, four hundred seventy-two".