13263646640522 has 16 divisors (see below), whose sum is σ = 21065872331520. Its totient is φ = 6241692182208.

The previous prime is 13263646640507. The next prime is 13263646640551. The reversal of 13263646640522 is 22504664636231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10906313 + ... + 12061299.

It is an arithmetic number, because the mean of its divisors is an integer number (1316617020720).

Almost surely, 2^{13263646640522} is an apocalyptic number.

13263646640522 is a deficient number, since it is larger than the sum of its proper divisors (7802225690998).

13263646640522 is a wasteful number, since it uses less digits than its factorization.

13263646640522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492765.

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 13263646640522 in words is "thirteen trillion, two hundred sixty-three billion, six hundred forty-six million, six hundred forty thousand, five hundred twenty-two".