12323534561055 has 32 divisors (see below), whose sum is σ = 22068422020800. Its totient is φ = 6524576925696.

The previous prime is 12323534561027. The next prime is 12323534561057. The reversal of 12323534561055 is 55016543532321.

12323534561055 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 3 + 5 + 34 + 561 + 0 + 55 = 666.

It is not a de Polignac number, because 12323534561055 - 2⁶ = 12323534560991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12323534561055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323534561057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333140050 + ... + 333177039.

It is an arithmetic number, because the mean of its divisors is an integer number (689638188150).

Almost surely, 2^{12323534561055} is an apocalyptic number.

12323534561055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12323534561055 is a deficient number, since it is larger than the sum of its proper divisors (9744887459745).

12323534561055 is a wasteful number, since it uses less digits than its factorization.

12323534561055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666317240 (or 666317234 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 12323534561055 in words is "twelve trillion, three hundred twenty-three billion, five hundred thirty-four million, five hundred sixty-one thousand, fifty-five".