226353165991 has 2 divisors, whose sum is σ = 226353165992. Its totient is φ = 226353165990.

The previous prime is 226353165949. The next prime is 226353166063. The reversal of 226353165991 is 199561353622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226353165991 - 2²⁹ = 225816295079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226353165901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113176582995 + 113176582996.

It is an arithmetic number, because the mean of its divisors is an integer number (113176582996).

Almost surely, 2^226353165991 is an apocalyptic number.

226353165991 is a deficient number, since it is larger than the sum of its proper divisors (1).

226353165991 is an equidigital number, since it uses as much as digits as its factorization.

226353165991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2624400, while the sum is 52.

The spelling of 226353165991 in words is "two hundred twenty-six billion, three hundred fifty-three million, one hundred sixty-five thousand, nine hundred ninety-one".