15235664338 has 16 divisors (see below), whose sum is σ = 23022441720. Its totient is φ = 7561691136.

The previous prime is 15235664309. The next prime is 15235664351. The reversal of 15235664338 is 83346653251.

15235664338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12749345569 + 2486318769 = 112913^2 + 49863^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133218 + ... + 219586.

Almost surely, 2^15235664338 is an apocalyptic number.

15235664338 is a deficient number, since it is larger than the sum of its proper divisors (7786777382).

15235664338 is a wasteful number, since it uses less digits than its factorization.

15235664338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87021.

The product of its digits is 1555200, while the sum is 46.

The spelling of 15235664338 in words is "fifteen billion, two hundred thirty-five million, six hundred sixty-four thousand, three hundred thirty-eight".