66130617 has 8 divisors (see below), whose sum is σ = 100770496. Its totient is φ = 37788912.

The previous prime is 66130609. The next prime is 66130637. The reversal of 66130617 is 71603166.

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

It is not a de Polignac number, because 66130617 - 2³ = 66130609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66130637) 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, 1574518 + ... + 1574559.

It is an arithmetic number, because the mean of its divisors is an integer number (12596312).

Almost surely, 2^66130617 is an apocalyptic number.

It is an amenable number.

66130617 is a deficient number, since it is larger than the sum of its proper divisors (34639879).

66130617 is a wasteful number, since it uses less digits than its factorization.

66130617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149087.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 66130617 is about 8132.0733518581. The cubic root of 66130617 is about 404.3904196451.

The spelling of 66130617 in words is "sixty-six million, one hundred thirty thousand, six hundred seventeen".