13056624661 has 8 divisors (see below), whose sum is σ = 13079697624. Its totient is φ = 13033574400.

The previous prime is 13056624641. The next prime is 13056624683. The reversal of 13056624661 is 16642665031.

It can be written as a sum of positive squares in 4 ways, for example, as 471150436 + 12585474225 = 21706^2 + 112185^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13056624661 - 2⁹ = 13056624149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056624641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457151 + ... + 1466083.

It is an arithmetic number, because the mean of its divisors is an integer number (1634962203).

Almost surely, 2^13056624661 is an apocalyptic number.

It is an amenable number.

13056624661 is a deficient number, since it is larger than the sum of its proper divisors (23072963).

13056624661 is a wasteful number, since it uses less digits than its factorization.

13056624661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11351.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 13056624661 in words is "thirteen billion, fifty-six million, six hundred twenty-four thousand, six hundred sixty-one".