26453645635566 has 16 divisors (see below), whose sum is σ = 55691885548800. Its totient is φ = 8353782832248.

The previous prime is 26453645635553. The next prime is 26453645635577. The reversal of 26453645635566 is 66553654635462.

It is a junction number, because it is equal to n+sod(n) for n = 26453645635497 and 26453645635506.

It is a congruent number.

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, 116024761446 + ... + 116024761673.

It is an arithmetic number, because the mean of its divisors is an integer number (3480742846800).

Almost surely, 2^{26453645635566} is an apocalyptic number.

26453645635566 is an abundant number, since it is smaller than the sum of its proper divisors (29238239913234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26453645635566 is a wasteful number, since it uses less digits than its factorization.

26453645635566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232049523143.

The product of its digits is 1399680000, while the sum is 66.

The spelling of 26453645635566 in words is "twenty-six trillion, four hundred fifty-three billion, six hundred forty-five million, six hundred thirty-five thousand, five hundred sixty-six".