2666397703 has 2 divisors, whose sum is σ = 2666397704. Its totient is φ = 2666397702.

The previous prime is 2666397697. The next prime is 2666397733. The reversal of 2666397703 is 3077936662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2666397703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666397733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333198851 + 1333198852.

It is an arithmetic number, because the mean of its divisors is an integer number (1333198852).

Almost surely, 2^2666397703 is an apocalyptic number.

2666397703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666397703 is an equidigital number, since it uses as much as digits as its factorization.

2666397703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 49.

The square root of 2666397703 is about 51637.1736542580. The cubic root of 2666397703 is about 1386.6759248861.

The spelling of 2666397703 in words is "two billion, six hundred sixty-six million, three hundred ninety-seven thousand, seven hundred three".