13216011044 has 6 divisors (see below), whose sum is σ = 23128019334. Its totient is φ = 6608005520.

The previous prime is 13216011037. The next prime is 13216011079. The reversal of 13216011044 is 44011061231.

It can be written as a sum of positive squares in only one way, i.e., 11594982400 + 1621028644 = 107680^2 + 40262^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652001377 + ... + 1652001384.

It is an arithmetic number, because the mean of its divisors is an integer number (3854669889).

Almost surely, 2^13216011044 is an apocalyptic number.

It is an amenable number.

13216011044 is a deficient number, since it is larger than the sum of its proper divisors (9912008290).

13216011044 is a wasteful number, since it uses less digits than its factorization.

13216011044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304002765 (or 3304002763 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 13216011044 its reverse (44011061231), we get a palindrome (57227072275).

The spelling of 13216011044 in words is "thirteen billion, two hundred sixteen million, eleven thousand, forty-four".