12040366361461 has 2 divisors, whose sum is σ = 12040366361462. Its totient is φ = 12040366361460.

The previous prime is 12040366361459. The next prime is 12040366361557. The reversal of 12040366361461 is 16416366304021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9105945971236 + 2934420390225 = 3017606^2 + 1713015^2 .

It is a cyclic number.

It is not a de Polignac number, because 12040366361461 - 2¹ = 12040366361459 is a prime.

Together with 12040366361459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12040366362461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020183180730 + 6020183180731.

It is an arithmetic number, because the mean of its divisors is an integer number (6020183180731).

Almost surely, 2^{12040366361461} is an apocalyptic number.

It is an amenable number.

12040366361461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040366361461 is an equidigital number, since it uses as much as digits as its factorization.

12040366361461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 12040366361461 in words is "twelve trillion, forty billion, three hundred sixty-six million, three hundred sixty-one thousand, four hundred sixty-one".