13160640640 has 64 divisors (see below), whose sum is σ = 35956762560. Its totient is φ = 4512218112.

The previous prime is 13160640637. The next prime is 13160640653. The reversal of 13160640640 is 4604606131.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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, 1464342 + ... + 1473301.

It is an arithmetic number, because the mean of its divisors is an integer number (561824415).

Almost surely, 2^13160640640 is an apocalyptic number.

13160640640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13160640640 is an abundant number, since it is smaller than the sum of its proper divisors (22796121920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13160640640 is an equidigital number, since it uses as much as digits as its factorization.

13160640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937669 (or 2937657 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 13160640640 in words is "thirteen billion, one hundred sixty million, six hundred forty thousand, six hundred forty".