16466631440227 has 2 divisors, whose sum is σ = 16466631440228. Its totient is φ = 16466631440226.

The previous prime is 16466631440213. The next prime is 16466631440299. The reversal of 16466631440227 is 72204413666461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16466631440227 - 2⁷ = 16466631440099 is a prime.

It is a super-2 number, since 2×16466631440227² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16466631444227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8233315720113 + 8233315720114.

It is an arithmetic number, because the mean of its divisors is an integer number (8233315720114).

Almost surely, 2^{16466631440227} is an apocalyptic number.

16466631440227 is a deficient number, since it is larger than the sum of its proper divisors (1).

16466631440227 is an equidigital number, since it uses as much as digits as its factorization.

16466631440227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 16466631440227 in words is "sixteen trillion, four hundred sixty-six billion, six hundred thirty-one million, four hundred forty thousand, two hundred twenty-seven".