15317322320 has 40 divisors (see below), whose sum is σ = 37707646824. Its totient is φ = 5766520832.

The previous prime is 15317322313. The next prime is 15317322367. The reversal of 15317322320 is 2322371351.

15317322320 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 8825475136 + 6491847184 = 93944^2 + 80572^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 5630009 + ... + 5632728.

Almost surely, 2^15317322320 is an apocalyptic number.

15317322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15317322320 is an abundant number, since it is smaller than the sum of its proper divisors (22390324504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15317322320 is a wasteful number, since it uses less digits than its factorization.

15317322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262767 (or 11262761 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 15317322320 its reverse (2322371351), we get a palindrome (17639693671).

The spelling of 15317322320 in words is "fifteen billion, three hundred seventeen million, three hundred twenty-two thousand, three hundred twenty".