12355452505 has 16 divisors (see below), whose sum is σ = 16179531264. Its totient is φ = 8982938880.

The previous prime is 12355452497. The next prime is 12355452553. The reversal of 12355452505 is 50525455321.

12355452505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12355452505 - 2³ = 12355452497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 148312 + ... + 216118.

It is an arithmetic number, because the mean of its divisors is an integer number (1011220704).

Almost surely, 2^12355452505 is an apocalyptic number.

It is an amenable number.

12355452505 is a deficient number, since it is larger than the sum of its proper divisors (3824078759).

12355452505 is a wasteful number, since it uses less digits than its factorization.

12355452505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71136.

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 12355452505 in words is "twelve billion, three hundred fifty-five million, four hundred fifty-two thousand, five hundred five".