13344880065 has 48 divisors (see below), whose sum is σ = 24849949824. Its totient is φ = 6089628160.

The previous prime is 13344880061. The next prime is 13344880069. The reversal of 13344880065 is 56008844331.

It is an interprime number because it is at equal distance from previous prime (13344880061) and next prime (13344880069).

It is not a de Polignac number, because 13344880065 - 2² = 13344880061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13344879999 and 13344880026.

It is not an unprimeable number, because it can be changed into a prime (13344880061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185397 + ... + 247106.

It is an arithmetic number, because the mean of its divisors is an integer number (517707288).

Almost surely, 2^13344880065 is an apocalyptic number.

13344880065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13344880065 is a deficient number, since it is larger than the sum of its proper divisors (11505069759).

13344880065 is a wasteful number, since it uses less digits than its factorization.

13344880065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432550 (or 432539 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 13344880065 in words is "thirteen billion, three hundred forty-four million, eight hundred eighty thousand, sixty-five".