2006274409661 has 2 divisors, whose sum is σ = 2006274409662. Its totient is φ = 2006274409660.

The previous prime is 2006274409541. The next prime is 2006274409669. The reversal of 2006274409661 is 1669044726002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1943776909636 + 62497500025 = 1394194^2 + 249995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006274409661 - 2¹⁰ = 2006274408637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006274409669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003137204830 + 1003137204831.

It is an arithmetic number, because the mean of its divisors is an integer number (1003137204831).

Almost surely, 2^{2006274409661} is an apocalyptic number.

It is an amenable number.

2006274409661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006274409661 is an equidigital number, since it uses as much as digits as its factorization.

2006274409661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 2006274409661 in words is "two trillion, six billion, two hundred seventy-four million, four hundred nine thousand, six hundred sixty-one".