13956422566 has 8 divisors (see below), whose sum is σ = 21126695040. Its totient is φ = 6914190888.

The previous prime is 13956422479. The next prime is 13956422617. The reversal of 13956422566 is 66522465931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32009926 + ... + 32010361.

It is an arithmetic number, because the mean of its divisors is an integer number (2640836880).

Almost surely, 2^13956422566 is an apocalyptic number.

13956422566 is a deficient number, since it is larger than the sum of its proper divisors (7170272474).

13956422566 is a wasteful number, since it uses less digits than its factorization.

13956422566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64020398.

The product of its digits is 2332800, while the sum is 49.

The spelling of 13956422566 in words is "thirteen billion, nine hundred fifty-six million, four hundred twenty-two thousand, five hundred sixty-six".