2666419625759 has 2 divisors, whose sum is σ = 2666419625760. Its totient is φ = 2666419625758.

The previous prime is 2666419625717. The next prime is 2666419625783. The reversal of 2666419625759 is 9575269146662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2666419625759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666419625789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333209812879 + 1333209812880.

It is an arithmetic number, because the mean of its divisors is an integer number (1333209812880).

Almost surely, 2^{2666419625759} is an apocalyptic number.

2666419625759 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666419625759 is an equidigital number, since it uses as much as digits as its factorization.

2666419625759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 293932800, while the sum is 68.

The spelling of 2666419625759 in words is "two trillion, six hundred sixty-six billion, four hundred nineteen million, six hundred twenty-five thousand, seven hundred fifty-nine".