12142661535643 has 4 divisors (see below), whose sum is σ = 12856935743640. Its totient is φ = 11428387327648.

The previous prime is 12142661535593. The next prime is 12142661535647. The reversal of 12142661535643 is 34653516624121.

It is a happy number.

12142661535643 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12142661535643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12142661535647) 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, 357137103973 + ... + 357137104006.

It is an arithmetic number, because the mean of its divisors is an integer number (3214233935910).

Almost surely, 2^{12142661535643} is an apocalyptic number.

12142661535643 is a deficient number, since it is larger than the sum of its proper divisors (714274207997).

12142661535643 is an equidigital number, since it uses as much as digits as its factorization.

12142661535643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714274207996.

The product of its digits is 3110400, while the sum is 49.

The spelling of 12142661535643 in words is "twelve trillion, one hundred forty-two billion, six hundred sixty-one million, five hundred thirty-five thousand, six hundred forty-three".