20667414227 has 2 divisors, whose sum is σ = 20667414228. Its totient is φ = 20667414226.

The previous prime is 20667414197. The next prime is 20667414239. The reversal of 20667414227 is 72241476602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20667414227 - 2¹² = 20667410131 is a prime.

It is not a weakly prime, because it can be changed into another prime (20667414827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10333707113 + 10333707114.

It is an arithmetic number, because the mean of its divisors is an integer number (10333707114).

Almost surely, 2^20667414227 is an apocalyptic number.

20667414227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20667414227 is an equidigital number, since it uses as much as digits as its factorization.

20667414227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 20667414227 in words is "twenty billion, six hundred sixty-seven million, four hundred fourteen thousand, two hundred twenty-seven".