13722855566 has 16 divisors (see below), whose sum is σ = 24908713056. Its totient is φ = 5535269376.

The previous prime is 13722855499. The next prime is 13722855637. The reversal of 13722855566 is 66555822731.

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, 28829291 + ... + 28829766.

It is an arithmetic number, because the mean of its divisors is an integer number (1556794566).

Almost surely, 2^13722855566 is an apocalyptic number.

13722855566 is a deficient number, since it is larger than the sum of its proper divisors (11185857490).

13722855566 is a wasteful number, since it uses less digits than its factorization.

13722855566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57659083.

The product of its digits is 3024000, while the sum is 50.

The spelling of 13722855566 in words is "thirteen billion, seven hundred twenty-two million, eight hundred fifty-five thousand, five hundred sixty-six".