12946220735061 has 4 divisors (see below), whose sum is σ = 17261627646752. Its totient is φ = 8630813823372.

The previous prime is 12946220735003. The next prime is 12946220735083. The reversal of 12946220735061 is 16053702264921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12946220735061 - 2⁹ = 12946220734549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12946220735061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946220731061) 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, 2157703455841 + ... + 2157703455846.

It is an arithmetic number, because the mean of its divisors is an integer number (4315406911688).

Almost surely, 2^{12946220735061} is an apocalyptic number.

It is an amenable number.

12946220735061 is a deficient number, since it is larger than the sum of its proper divisors (4315406911691).

12946220735061 is an equidigital number, since it uses as much as digits as its factorization.

12946220735061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315406911690.

The product of its (nonzero) digits is 1088640, while the sum is 48.

Adding to 12946220735061 its reverse (16053702264921), we get a palindrome (28999922999982).

The spelling of 12946220735061 in words is "twelve trillion, nine hundred forty-six billion, two hundred twenty million, seven hundred thirty-five thousand, sixty-one".