42166617 has 8 divisors (see below), whose sum is σ = 57529824. Its totient is φ = 27457248.

The previous prime is 42166549. The next prime is 42166627. The reversal of 42166617 is 71666124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42166617 - 2⁷ = 42166489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42166627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163308 + ... + 163565.

It is an arithmetic number, because the mean of its divisors is an integer number (7191228).

Almost surely, 2^42166617 is an apocalyptic number.

It is an amenable number.

42166617 is a deficient number, since it is larger than the sum of its proper divisors (15363207).

42166617 is a wasteful number, since it uses less digits than its factorization.

42166617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326919.

The product of its digits is 12096, while the sum is 33.

The square root of 42166617 is about 6493.5827553054. The cubic root of 42166617 is about 348.0617128631.

The spelling of 42166617 in words is "forty-two million, one hundred sixty-six thousand, six hundred seventeen".