2666552897 has 2 divisors, whose sum is σ = 2666552898. Its totient is φ = 2666552896.

The previous prime is 2666552887. The next prime is 2666552927. The reversal of 2666552897 is 7982556662.

2666552897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2493604096 + 172948801 = 49936^2 + 13151^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666552897 - 2⁸ = 2666552641 is a prime.

It is a super-2 number, since 2×2666552897² = 14221008704998185218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2666552887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333276448 + 1333276449.

It is an arithmetic number, because the mean of its divisors is an integer number (1333276449).

Almost surely, 2^2666552897 is an apocalyptic number.

It is an amenable number.

2666552897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666552897 is an equidigital number, since it uses as much as digits as its factorization.

2666552897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The square root of 2666552897 is about 51638.6763676220. The cubic root of 2666552897 is about 1386.7028275505.

The spelling of 2666552897 in words is "two billion, six hundred sixty-six million, five hundred fifty-two thousand, eight hundred ninety-seven".