2666330671 has 2 divisors, whose sum is σ = 2666330672. Its totient is φ = 2666330670.

The previous prime is 2666330587. The next prime is 2666330701. The reversal of 2666330671 is 1760336662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666330671 - 2²⁵ = 2632776239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666330071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333165335 + 1333165336.

It is an arithmetic number, because the mean of its divisors is an integer number (1333165336).

Almost surely, 2^2666330671 is an apocalyptic number.

2666330671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666330671 is an equidigital number, since it uses as much as digits as its factorization.

2666330671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 2666330671 is about 51636.5245828958. The cubic root of 2666330671 is about 1386.6643046591.

The spelling of 2666330671 in words is "two billion, six hundred sixty-six million, three hundred thirty thousand, six hundred seventy-one".