66377163223 has 8 divisors (see below), whose sum is σ = 76103539200. Its totient is φ = 56711768280.

The previous prime is 66377163211. The next prime is 66377163263. The reversal of 66377163223 is 32236177366.

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-66377163223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66377163263) 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, 15242923 + ... + 15247276.

It is an arithmetic number, because the mean of its divisors is an integer number (9512942400).

Almost surely, 2^66377163223 is an apocalyptic number.

66377163223 is a deficient number, since it is larger than the sum of its proper divisors (9726375977).

66377163223 is a wasteful number, since it uses less digits than its factorization.

66377163223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30490517.

The product of its digits is 1143072, while the sum is 46.

The spelling of 66377163223 in words is "sixty-six billion, three hundred seventy-seven million, one hundred sixty-three thousand, two hundred twenty-three".