13245563640064 has 72 divisors (see below), whose sum is σ = 30351942709760. Its totient is φ = 5651214041088.

The previous prime is 13245563640047. The next prime is 13245563640079. The reversal of 13245563640064 is 46004636554231.

It is a super-2 number, since 2×13245563640064² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16173249 + ... + 16972480.

Almost surely, 2^{13245563640064} is an apocalyptic number.

13245563640064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13245563640064 is an abundant number, since it is smaller than the sum of its proper divisors (17106379069696).

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

13245563640064 is an equidigital number, since it uses as much as digits as its factorization.

13245563640064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33145975 (or 33145961 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 13245563640064 in words is "thirteen trillion, two hundred forty-five billion, five hundred sixty-three million, six hundred forty thousand, sixty-four".