13656531324 has 96 divisors (see below), whose sum is σ = 34034466816. Its totient is φ = 4247147520.

The previous prime is 13656531323. The next prime is 13656531419. The reversal of 13656531324 is 42313565631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13656531323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18039954 + ... + 18040710.

It is an arithmetic number, because the mean of its divisors is an integer number (354525696).

Almost surely, 2^13656531324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13656531324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17017233408).

13656531324 is an abundant number, since it is smaller than the sum of its proper divisors (20377935492).

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

13656531324 is a wasteful number, since it uses less digits than its factorization.

13656531324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1433 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The spelling of 13656531324 in words is "thirteen billion, six hundred fifty-six million, five hundred thirty-one thousand, three hundred twenty-four".