2660466643 has 2 divisors, whose sum is σ = 2660466644. Its totient is φ = 2660466642.

The previous prime is 2660466637. The next prime is 2660466661. The reversal of 2660466643 is 3466640662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2660466643 - 2¹⁷ = 2660335571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2660466643.

It is not a weakly prime, because it can be changed into another prime (2660463643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330233321 + 1330233322.

It is an arithmetic number, because the mean of its divisors is an integer number (1330233322).

Almost surely, 2^2660466643 is an apocalyptic number.

2660466643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660466643 is an equidigital number, since it uses as much as digits as its factorization.

2660466643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 43.

The square root of 2660466643 is about 51579.7115443660. The cubic root of 2660466643 is about 1385.6470006395.

The spelling of 2660466643 in words is "two billion, six hundred sixty million, four hundred sixty-six thousand, six hundred forty-three".