226515765551 has 2 divisors, whose sum is σ = 226515765552. Its totient is φ = 226515765550.

The previous prime is 226515765527. The next prime is 226515765569. The reversal of 226515765551 is 155567515622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226515765551 - 2³⁰ = 225442023727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226515765551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226515765571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113257882775 + 113257882776.

It is an arithmetic number, because the mean of its divisors is an integer number (113257882776).

Almost surely, 2^226515765551 is an apocalyptic number.

226515765551 is a deficient number, since it is larger than the sum of its proper divisors (1).

226515765551 is an equidigital number, since it uses as much as digits as its factorization.

226515765551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150000, while the sum is 50.

The spelling of 226515765551 in words is "two hundred twenty-six billion, five hundred fifteen million, seven hundred sixty-five thousand, five hundred fifty-one".