13221636046 has 32 divisors (see below), whose sum is σ = 20463867648. Its totient is φ = 6404287680.

The previous prime is 13221636023. The next prime is 13221636073. The reversal of 13221636046 is 64063612231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931325 + ... + 2935831.

It is an arithmetic number, because the mean of its divisors is an integer number (639495864).

Almost surely, 2^13221636046 is an apocalyptic number.

13221636046 is a deficient number, since it is larger than the sum of its proper divisors (7242231602).

13221636046 is a wasteful number, since it uses less digits than its factorization.

13221636046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 13221636046 in words is "thirteen billion, two hundred twenty-one million, six hundred thirty-six thousand, forty-six".