266501222453353 has 2 divisors, whose sum is σ = 266501222453354. Its totient is φ = 266501222453352.

The previous prime is 266501222453329. The next prime is 266501222453359. The reversal of 266501222453353 is 353354222105662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169903716922944 + 96597505530409 = 13034712^2 + 9828403^2 .

It is a cyclic number.

It is not a de Polignac number, because 266501222453353 - 2²⁵ = 266501188898921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266501222453297 and 266501222453306.

It is not a weakly prime, because it can be changed into another prime (266501222453359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133250611226676 + 133250611226677.

It is an arithmetic number, because the mean of its divisors is an integer number (133250611226677).

Almost surely, 2^{266501222453353} is an apocalyptic number.

It is an amenable number.

266501222453353 is a deficient number, since it is larger than the sum of its proper divisors (1).

266501222453353 is an equidigital number, since it uses as much as digits as its factorization.

266501222453353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776000, while the sum is 49.

The spelling of 266501222453353 in words is "two hundred sixty-six trillion, five hundred one billion, two hundred twenty-two million, four hundred fifty-three thousand, three hundred fifty-three".