66602831021227 has 2 divisors, whose sum is σ = 66602831021228. Its totient is φ = 66602831021226.

The previous prime is 66602831021201. The next prime is 66602831021231. The reversal of 66602831021227 is 72212013820666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66602831021227 - 2⁷ = 66602831021099 is a prime.

It is not a weakly prime, because it can be changed into another prime (66602831021297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33301415510613 + 33301415510614.

It is an arithmetic number, because the mean of its divisors is an integer number (33301415510614).

Almost surely, 2^{66602831021227} is an apocalyptic number.

66602831021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

66602831021227 is an equidigital number, since it uses as much as digits as its factorization.

66602831021227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 66602831021227 in words is "sixty-six trillion, six hundred two billion, eight hundred thirty-one million, twenty-one thousand, two hundred twenty-seven".