13320044545 has 16 divisors (see below), whose sum is σ = 16242528960. Its totient is φ = 10484109504.

The previous prime is 13320044539. The next prime is 13320044557. The reversal of 13320044545 is 54544002331.

It is a cyclic number.

It is not a de Polignac number, because 13320044545 - 2³ = 13320044537 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, 253734 + ... + 301696.

It is an arithmetic number, because the mean of its divisors is an integer number (1015158060).

Almost surely, 2^13320044545 is an apocalyptic number.

It is an amenable number.

13320044545 is a deficient number, since it is larger than the sum of its proper divisors (2922484415).

13320044545 is an equidigital number, since it uses as much as digits as its factorization.

13320044545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48864.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 13320044545 its reverse (54544002331), we get a palindrome (67864046876).

The spelling of 13320044545 in words is "thirteen billion, three hundred twenty million, forty-four thousand, five hundred forty-five".