12153545215 has 48 divisors (see below), whose sum is σ = 17466000192. Its totient is φ = 8089030656.

The previous prime is 12153545213. The next prime is 12153545227. The reversal of 12153545215 is 51254535121.

It is not a de Polignac number, because 12153545215 - 2¹ = 12153545213 is a prime.

It is a super-2 number, since 2×12153545215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153545213) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4413279 + ... + 4416031.

It is an arithmetic number, because the mean of its divisors is an integer number (363875004).

Almost surely, 2^12153545215 is an apocalyptic number.

12153545215 is a deficient number, since it is larger than the sum of its proper divisors (5312454977).

12153545215 is a wasteful number, since it uses less digits than its factorization.

12153545215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296 (or 3289 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The spelling of 12153545215 in words is "twelve billion, one hundred fifty-three million, five hundred forty-five thousand, two hundred fifteen".