2666462543 has 2 divisors, whose sum is σ = 2666462544. Its totient is φ = 2666462542.

The previous prime is 2666462509. The next prime is 2666462569. The reversal of 2666462543 is 3452646662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666462543 - 2⁶ = 2666462479 is a prime.

It is a super-2 number, since 2×2666462543² = 14220044986444053698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666462494 and 2666462503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666462503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333231271 + 1333231272.

It is an arithmetic number, because the mean of its divisors is an integer number (1333231272).

Almost surely, 2^2666462543 is an apocalyptic number.

2666462543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666462543 is an equidigital number, since it uses as much as digits as its factorization.

2666462543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 44.

The square root of 2666462543 is about 51637.8014927049. The cubic root of 2666462543 is about 1386.6871649370.

The spelling of 2666462543 in words is "two billion, six hundred sixty-six million, four hundred sixty-two thousand, five hundred forty-three".