170666672 has 40 divisors (see below), whose sum is σ = 381953232. Its totient is φ = 73011200.

The previous prime is 170666663. The next prime is 170666677. The reversal of 170666672 is 276666071.

It is a super-2 number, since 2×170666672² = 58254225863111168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (170666677) 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 7 ways as a sum of consecutive naturals, for example, 25529 + ... + 31512.

Almost surely, 2^170666672 is an apocalyptic number.

It is an amenable number.

170666672 is an abundant number, since it is smaller than the sum of its proper divisors (211286560).

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

170666672 is a wasteful number, since it uses less digits than its factorization.

170666672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57077 (or 57071 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 170666672 is about 13063.9454989678. The cubic root of 170666672 is about 554.6890252585.

The spelling of 170666672 in words is "one hundred seventy million, six hundred sixty-six thousand, six hundred seventy-two".