13531660322 has 4 divisors (see below), whose sum is σ = 20297490486. Its totient is φ = 6765830160.

The previous prime is 13531660321. The next prime is 13531660339. The reversal of 13531660322 is 22306613531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10444635601 + 3087024721 = 102199^2 + 55561^2 .

It is not an unprimeable number, because it can be changed into a prime (13531660321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382915079 + ... + 3382915082.

Almost surely, 2^13531660322 is an apocalyptic number.

13531660322 is a deficient number, since it is larger than the sum of its proper divisors (6765830164).

13531660322 is an equidigital number, since it uses as much as digits as its factorization.

13531660322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765830163.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 13531660322 in words is "thirteen billion, five hundred thirty-one million, six hundred sixty thousand, three hundred twenty-two".