66232857161 has 8 divisors (see below), whose sum is σ = 66654290400. Its totient is φ = 65811608352.

The previous prime is 66232857137. The next prime is 66232857193. The reversal of 66232857161 is 16175823266.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66232857161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66232857101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714086 + ... + 801488.

It is an arithmetic number, because the mean of its divisors is an integer number (8331786300).

Almost surely, 2^66232857161 is an apocalyptic number.

It is an amenable number.

66232857161 is a deficient number, since it is larger than the sum of its proper divisors (421433239).

66232857161 is a wasteful number, since it uses less digits than its factorization.

66232857161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92215.

The product of its digits is 725760, while the sum is 47.

The spelling of 66232857161 in words is "sixty-six billion, two hundred thirty-two million, eight hundred fifty-seven thousand, one hundred sixty-one".