26566226643 has 16 divisors (see below), whose sum is σ = 39888294912. Its totient is φ = 15581364000.

The previous prime is 26566226639. The next prime is 26566226651. The reversal of 26566226643 is 34662266562.

It is not a de Polignac number, because 26566226643 - 2² = 26566226639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26566226592 and 26566226601.

It is not an unprimeable number, because it can be changed into a prime (26566226623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12983448 + ... + 12985493.

It is an arithmetic number, because the mean of its divisors is an integer number (2493018432).

Almost surely, 2^26566226643 is an apocalyptic number.

26566226643 is a deficient number, since it is larger than the sum of its proper divisors (13322068269).

26566226643 is a wasteful number, since it uses less digits than its factorization.

26566226643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25968986.

The product of its digits is 3732480, while the sum is 48.

The spelling of 26566226643 in words is "twenty-six billion, five hundred sixty-six million, two hundred twenty-six thousand, six hundred forty-three".