2566061211 has 16 divisors (see below), whose sum is σ = 3910975488. Its totient is φ = 1466025600.

The previous prime is 2566061203. The next prime is 2566061227. The reversal of 2566061211 is 1121606652.

It is not a de Polignac number, because 2566061211 - 2³ = 2566061203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2566066211) 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 in 15 ways as a sum of consecutive naturals, for example, 136291 + ... + 153971.

It is an arithmetic number, because the mean of its divisors is an integer number (244435968).

Almost surely, 2^2566061211 is an apocalyptic number.

2566061211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2566061211 is a deficient number, since it is larger than the sum of its proper divisors (1344914277).

2566061211 is a wasteful number, since it uses less digits than its factorization.

2566061211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24602.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2566061211 is about 50656.3047507415. The cubic root of 2566061211 is about 1369.0595444109.

Adding to 2566061211 its reverse (1121606652), we get a palindrome (3687667863).

The spelling of 2566061211 in words is "two billion, five hundred sixty-six million, sixty-one thousand, two hundred eleven".