13160729081 has 8 divisors (see below), whose sum is σ = 13488645984. Its totient is φ = 12833805600.

The previous prime is 13160729063. The next prime is 13160729089. The reversal of 13160729081 is 18092706131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13160729081 is a prime.

It is a super-2 number, since 2×13160729081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13160729089) 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, 221495 + ... + 274556.

It is an arithmetic number, because the mean of its divisors is an integer number (1686080748).

Almost surely, 2^13160729081 is an apocalyptic number.

It is an amenable number.

13160729081 is a deficient number, since it is larger than the sum of its proper divisors (327916903).

13160729081 is an equidigital number, since it uses as much as digits as its factorization.

13160729081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496711.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 13160729081 in words is "thirteen billion, one hundred sixty million, seven hundred twenty-nine thousand, eighty-one".