13056417681 has 8 divisors (see below), whose sum is σ = 17414042304. Its totient is φ = 8701535760.

The previous prime is 13056417679. The next prime is 13056417683. The reversal of 13056417681 is 18671465031.

It is an interprime number because it is at equal distance from previous prime (13056417679) and next prime (13056417683).

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

It is not a de Polignac number, because 13056417681 - 2¹ = 13056417679 is a prime.

It is a super-2 number, since 2×13056417681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13056417683) 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, 674541 + ... + 693626.

It is an arithmetic number, because the mean of its divisors is an integer number (2176755288).

Almost surely, 2^13056417681 is an apocalyptic number.

It is an amenable number.

13056417681 is a deficient number, since it is larger than the sum of its proper divisors (4357624623).

13056417681 is a wasteful number, since it uses less digits than its factorization.

13056417681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371351.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 13056417681 in words is "thirteen billion, fifty-six million, four hundred seventeen thousand, six hundred eighty-one".