66332113 has 8 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 61638720.

The previous prime is 66332111. The next prime is 66332129. The reversal of 66332113 is 31123366.

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

It is a cyclic number.

It is not a de Polignac number, because 66332113 - 2¹ = 66332111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66332111) 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, 23353 + ... + 26038.

It is an arithmetic number, because the mean of its divisors is an integer number (8890560).

Almost surely, 2^66332113 is an apocalyptic number.

It is an amenable number.

66332113 is a deficient number, since it is larger than the sum of its proper divisors (4792367).

66332113 is a wasteful number, since it uses less digits than its factorization.

66332113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49487.

The product of its digits is 1944, while the sum is 25.

The square root of 66332113 is about 8144.4528975248. The cubic root of 66332113 is about 404.8007209423.

Adding to 66332113 its reverse (31123366), we get a palindrome (97455479).

The spelling of 66332113 in words is "sixty-six million, three hundred thirty-two thousand, one hundred thirteen".