2665678583 has 2 divisors, whose sum is σ = 2665678584. Its totient is φ = 2665678582.

The previous prime is 2665678571. The next prime is 2665678601. The reversal of 2665678583 is 3858765662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665678583 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665675583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332839291 + 1332839292.

It is an arithmetic number, because the mean of its divisors is an integer number (1332839292).

Almost surely, 2^2665678583 is an apocalyptic number.

2665678583 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665678583 is an equidigital number, since it uses as much as digits as its factorization.

2665678583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 56.

The square root of 2665678583 is about 51630.2099840781. The cubic root of 2665678583 is about 1386.5512528051.

The spelling of 2665678583 in words is "two billion, six hundred sixty-five million, six hundred seventy-eight thousand, five hundred eighty-three".