2466542247661 has 2 divisors, whose sum is σ = 2466542247662. Its totient is φ = 2466542247660.

The previous prime is 2466542247577. The next prime is 2466542247679. The reversal of 2466542247661 is 1667422456642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2292710788900 + 173831458761 = 1514170^2 + 416931^2 .

It is a cyclic number.

It is not a de Polignac number, because 2466542247661 - 2³⁹ = 1916786433773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2466542247061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1233271123830 + 1233271123831.

It is an arithmetic number, because the mean of its divisors is an integer number (1233271123831).

Almost surely, 2^{2466542247661} is an apocalyptic number.

It is an amenable number.

2466542247661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2466542247661 is an equidigital number, since it uses as much as digits as its factorization.

2466542247661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 55.

The spelling of 2466542247661 in words is "two trillion, four hundred sixty-six billion, five hundred forty-two million, two hundred forty-seven thousand, six hundred sixty-one".