13066543531 has 8 divisors (see below), whose sum is σ = 13247622080. Its totient is φ = 12885521472.

The previous prime is 13066543489. The next prime is 13066543541. The reversal of 13066543531 is 13534566031.

It is a happy number.

13066543531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13066543531 is a prime.

It is a super-2 number, since 2×13066543531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13066543541) 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 7 ways as a sum of consecutive naturals, for example, 697321 + ... + 715813.

It is an arithmetic number, because the mean of its divisors is an integer number (1655952760).

Almost surely, 2^13066543531 is an apocalyptic number.

13066543531 is a deficient number, since it is larger than the sum of its proper divisors (181078549).

13066543531 is an equidigital number, since it uses as much as digits as its factorization.

13066543531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28245.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13066543531 in words is "thirteen billion, sixty-six million, five hundred forty-three thousand, five hundred thirty-one".