13531660324 has 36 divisors (see below), whose sum is σ = 29305262784. Its totient is φ = 5353182432.

The previous prime is 13531660321. The next prime is 13531660339. The reversal of 13531660324 is 42306613531.

It is a super-2 number, since 2×13531660324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13531660324.

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 in 11 ways as a sum of consecutive naturals, for example, 1425072 + ... + 1434535.

Almost surely, 2^13531660324 is an apocalyptic number.

13531660324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13531660324 is an abundant number, since it is smaller than the sum of its proper divisors (15773602460).

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

13531660324 is a wasteful number, since it uses less digits than its factorization.

13531660324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859644 (or 2859629 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 13531660324 in words is "thirteen billion, five hundred thirty-one million, six hundred sixty thousand, three hundred twenty-four".