13326665505 has 16 divisors (see below), whose sum is σ = 21579566400. Its totient is φ = 7021921088.

The previous prime is 13326665489. The next prime is 13326665537. The reversal of 13326665505 is 50556662331.

It is a cyclic number.

It is not a de Polignac number, because 13326665505 - 2⁴ = 13326665489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5350830 + ... + 5353319.

It is an arithmetic number, because the mean of its divisors is an integer number (1348722900).

Almost surely, 2^13326665505 is an apocalyptic number.

13326665505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13326665505 is a deficient number, since it is larger than the sum of its proper divisors (8252900895).

13326665505 is a wasteful number, since it uses less digits than its factorization.

13326665505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704240.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 13326665505 in words is "thirteen billion, three hundred twenty-six million, six hundred sixty-five thousand, five hundred five".