226405051657 has 2 divisors, whose sum is σ = 226405051658. Its totient is φ = 226405051656.

The previous prime is 226405051643. The next prime is 226405051667. The reversal of 226405051657 is 756150504622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206598429961 + 19806621696 = 454531^2 + 140736^2 .

It is a cyclic number.

It is not a de Polignac number, because 226405051657 - 2³⁵ = 192045313289 is a prime.

It is not a weakly prime, because it can be changed into another prime (226405051627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113202525828 + 113202525829.

It is an arithmetic number, because the mean of its divisors is an integer number (113202525829).

Almost surely, 2^226405051657 is an apocalyptic number.

It is an amenable number.

226405051657 is a deficient number, since it is larger than the sum of its proper divisors (1).

226405051657 is an equidigital number, since it uses as much as digits as its factorization.

226405051657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 226405051657 in words is "two hundred twenty-six billion, four hundred five million, fifty-one thousand, six hundred fifty-seven".