13056672385 has 8 divisors (see below), whose sum is σ = 15669605160. Its totient is φ = 10444272384.

The previous prime is 13056672383. The next prime is 13056672437. The reversal of 13056672385 is 58327665031.

It can be written as a sum of positive squares in 4 ways, for example, as 932019841 + 12124652544 = 30529^2 + 110112^2 .

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 13056672385 - 2¹ = 13056672383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13056672383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77130 + ... + 179059.

It is an arithmetic number, because the mean of its divisors is an integer number (1958700645).

Almost surely, 2^13056672385 is an apocalyptic number.

It is an amenable number.

13056672385 is a deficient number, since it is larger than the sum of its proper divisors (2612932775).

13056672385 is a wasteful number, since it uses less digits than its factorization.

13056672385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266387.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 13056672385 in words is "thirteen billion, fifty-six million, six hundred seventy-two thousand, three hundred eighty-five".