2666519143 has 2 divisors, whose sum is σ = 2666519144. Its totient is φ = 2666519142.

The previous prime is 2666519137. The next prime is 2666519209. The reversal of 2666519143 is 3419156662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2666519143 is a prime.

It is a super-2 number, since 2×2666519143² = 14220648679970908898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666519143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666519113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333259571 + 1333259572.

It is an arithmetic number, because the mean of its divisors is an integer number (1333259572).

Almost surely, 2^2666519143 is an apocalyptic number.

2666519143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666519143 is an equidigital number, since it uses as much as digits as its factorization.

2666519143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 2666519143 is about 51638.3495379161. The cubic root of 2666519143 is about 1386.6969764303.

It can be divided in two parts, 2666519 and 143, that added together give a palindrome (2666662).

The spelling of 2666519143 in words is "two billion, six hundred sixty-six million, five hundred nineteen thousand, one hundred forty-three".