12533544015 has 32 divisors (see below), whose sum is σ = 21252243456. Its totient is φ = 6285734400.

The previous prime is 12533543999. The next prime is 12533544041. The reversal of 12533544015 is 51044533521.

It is not a de Polignac number, because 12533544015 - 2⁴ = 12533543999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272154 + ... + 314856.

It is an arithmetic number, because the mean of its divisors is an integer number (664132608).

Almost surely, 2^12533544015 is an apocalyptic number.

12533544015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12533544015 is a deficient number, since it is larger than the sum of its proper divisors (8718699441).

12533544015 is a wasteful number, since it uses less digits than its factorization.

12533544015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43879.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 12533544015 in words is "twelve billion, five hundred thirty-three million, five hundred forty-four thousand, fifteen".