12156335154533 has 4 divisors (see below), whose sum is σ = 12156351368928. Its totient is φ = 12156318940140.

The previous prime is 12156335154511. The next prime is 12156335154553. The reversal of 12156335154533 is 33545153365121.

12156335154533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12156335154533 - 2²² = 12156330960229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12156335154503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6925163 + ... + 8501208.

It is an arithmetic number, because the mean of its divisors is an integer number (3039087842232).

Almost surely, 2^{12156335154533} is an apocalyptic number.

It is an amenable number.

12156335154533 is a deficient number, since it is larger than the sum of its proper divisors (16214395).

12156335154533 is an equidigital number, since it uses as much as digits as its factorization.

12156335154533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16214394.

The product of its digits is 2430000, while the sum is 47.

The spelling of 12156335154533 in words is "twelve trillion, one hundred fifty-six billion, three hundred thirty-five million, one hundred fifty-four thousand, five hundred thirty-three".