12361052013655 has 4 divisors (see below), whose sum is σ = 14833262416392. Its totient is φ = 9888841610920.

The previous prime is 12361052013641. The next prime is 12361052013659. The reversal of 12361052013655 is 55631025016321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12361052013655 - 2²⁹ = 12360515142743 is a prime.

It is a super-3 number, since 3×12361052013655³ (a number of 40 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12361052013659) 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, 1236105201361 + ... + 1236105201370.

It is an arithmetic number, because the mean of its divisors is an integer number (3708315604098).

Almost surely, 2^{12361052013655} is an apocalyptic number.

12361052013655 is a deficient number, since it is larger than the sum of its proper divisors (2472210402737).

12361052013655 is an equidigital number, since it uses as much as digits as its factorization.

12361052013655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472210402736.

The product of its (nonzero) digits is 162000, while the sum is 40.

Adding to 12361052013655 its reverse (55631025016321), we get a palindrome (67992077029976).

The spelling of 12361052013655 in words is "twelve trillion, three hundred sixty-one billion, fifty-two million, thirteen thousand, six hundred fifty-five".