12140335611646 has 8 divisors (see below), whose sum is σ = 19866003728184. Its totient is φ = 5518334368920.

The previous prime is 12140335611587. The next prime is 12140335611647. The reversal of 12140335611646 is 64611653304121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140335611647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275916718425 + ... + 275916718468.

It is an arithmetic number, because the mean of its divisors is an integer number (2483250466023).

Almost surely, 2^{12140335611646} is an apocalyptic number.

12140335611646 is a deficient number, since it is larger than the sum of its proper divisors (7725668116538).

12140335611646 is a wasteful number, since it uses less digits than its factorization.

12140335611646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551833436906.

The product of its (nonzero) digits is 311040, while the sum is 43.

Adding to 12140335611646 its reverse (64611653304121), we get a palindrome (76751988915767).

The spelling of 12140335611646 in words is "twelve trillion, one hundred forty billion, three hundred thirty-five million, six hundred eleven thousand, six hundred forty-six".