12153830155805 has 16 divisors (see below), whose sum is σ = 15793264394544. Its totient is φ = 8925549719040.

The previous prime is 12153830155801. The next prime is 12153830155823. The reversal of 12153830155805 is 50855103835121.

12153830155805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6700119994681 + 5453710161124 = 2588459^2 + 2335318^2 .

It is not a de Polignac number, because 12153830155805 - 2² = 12153830155801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12153830155805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153830155801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516513104 + ... + 516536633.

It is an arithmetic number, because the mean of its divisors is an integer number (987079024659).

Almost surely, 2^{12153830155805} is an apocalyptic number.

It is an amenable number.

12153830155805 is a deficient number, since it is larger than the sum of its proper divisors (3639434238739).

12153830155805 is a wasteful number, since it uses less digits than its factorization.

12153830155805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033049936.

The product of its (nonzero) digits is 720000, while the sum is 47.

The spelling of 12153830155805 in words is "twelve trillion, one hundred fifty-three billion, eight hundred thirty million, one hundred fifty-five thousand, eight hundred five".