66130635 has 32 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 33390720.

The previous prime is 66130609. The next prime is 66130637. The reversal of 66130635 is 53603166.

It is a de Polignac number, because none of the positive numbers 2^k-66130635 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 34605 + ... + 36465.

It is an arithmetic number, because the mean of its divisors is an integer number (3485664).

Almost surely, 2^66130635 is an apocalyptic number.

66130635 is a deficient number, since it is larger than the sum of its proper divisors (45410613).

66130635 is a wasteful number, since it uses less digits than its factorization.

66130635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 66130635 is about 8132.0744585868. The cubic root of 66130635 is about 404.3904563352.

The spelling of 66130635 in words is "sixty-six million, one hundred thirty thousand, six hundred thirty-five".