13224661456 has 20 divisors (see below), whose sum is σ = 25637255812. Its totient is φ = 6608595456.

The previous prime is 13224661453. The next prime is 13224661459. The reversal of 13224661456 is 65416642231.

It is an interprime number because it is at equal distance from previous prime (13224661453) and next prime (13224661459).

It can be written as a sum of positive squares in 2 ways, for example, as 11278440000 + 1946221456 = 106200^2 + 44116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224661453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204135 + ... + 260998.

Almost surely, 2^13224661456 is an apocalyptic number.

13224661456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13224661456 is a deficient number, since it is larger than the sum of its proper divisors (12412594356).

13224661456 is a wasteful number, since it uses less digits than its factorization.

13224661456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466918 (or 466912 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 13224661456 in words is "thirteen billion, two hundred twenty-four million, six hundred sixty-one thousand, four hundred fifty-six".