15543243532 has 12 divisors (see below), whose sum is σ = 27248317096. Its totient is φ = 7758010080.

The previous prime is 15543243517. The next prime is 15543243539. The reversal of 15543243532 is 23534234551.

15543243532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15543243491 and 15543243500.

It is not an unprimeable number, because it can be changed into a prime (15543243539) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3400353 + ... + 3404920.

Almost surely, 2^15543243532 is an apocalyptic number.

It is an amenable number.

15543243532 is a deficient number, since it is larger than the sum of its proper divisors (11705073564).

15543243532 is a wasteful number, since it uses less digits than its factorization.

15543243532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805848 (or 6805846 counting only the distinct ones).

The product of its digits is 216000, while the sum is 37.

The spelling of 15543243532 in words is "fifteen billion, five hundred forty-three million, two hundred forty-three thousand, five hundred thirty-two".