20226667361 has 2 divisors, whose sum is σ = 20226667362. Its totient is φ = 20226667360.

The previous prime is 20226667327. The next prime is 20226667399. The reversal of 20226667361 is 16376662202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15946890961 + 4279776400 = 126281^2 + 65420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20226667361 is a prime.

It is not a weakly prime, because it can be changed into another prime (20226667261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10113333680 + 10113333681.

It is an arithmetic number, because the mean of its divisors is an integer number (10113333681).

Almost surely, 2^20226667361 is an apocalyptic number.

It is an amenable number.

20226667361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20226667361 is an equidigital number, since it uses as much as digits as its factorization.

20226667361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 20226667361 in words is "twenty billion, two hundred twenty-six million, six hundred sixty-seven thousand, three hundred sixty-one".