66230722227 has 4 divisors (see below), whose sum is σ = 88307629640. Its totient is φ = 44153814816.

The previous prime is 66230722223. The next prime is 66230722249. The reversal of 66230722227 is 72222703266.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66230722227 - 2² = 66230722223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66230722223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11038453702 + ... + 11038453707.

It is an arithmetic number, because the mean of its divisors is an integer number (22076907410).

Almost surely, 2^66230722227 is an apocalyptic number.

66230722227 is a deficient number, since it is larger than the sum of its proper divisors (22076907413).

66230722227 is a wasteful number, since it uses less digits than its factorization.

66230722227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22076907412.

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 66230722227 in words is "sixty-six billion, two hundred thirty million, seven hundred twenty-two thousand, two hundred twenty-seven".