13223655526 has 4 divisors (see below), whose sum is σ = 19835483292. Its totient is φ = 6611827762.

The previous prime is 13223655469. The next prime is 13223655541. The reversal of 13223655526 is 62555632231.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305913880 + ... + 3305913883.

It is an arithmetic number, because the mean of its divisors is an integer number (4958870823).

Almost surely, 2^13223655526 is an apocalyptic number.

13223655526 is a deficient number, since it is larger than the sum of its proper divisors (6611827766).

13223655526 is an equidigital number, since it uses as much as digits as its factorization.

13223655526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611827765.

The product of its digits is 324000, while the sum is 40.

The spelling of 13223655526 in words is "thirteen billion, two hundred twenty-three million, six hundred fifty-five thousand, five hundred twenty-six".