5666260997 has 4 divisors (see below), whose sum is σ = 5964485280. Its totient is φ = 5368036716.

The previous prime is 5666260991. The next prime is 5666261009. The reversal of 5666260997 is 7990626665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5666260997 - 2²⁶ = 5599152133 is a prime.

It is a super-2 number, since 2×5666260997² = 64213027372246868018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666260991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149112113 + ... + 149112150.

It is an arithmetic number, because the mean of its divisors is an integer number (1491121320).

Almost surely, 2^5666260997 is an apocalyptic number.

It is an amenable number.

5666260997 is a deficient number, since it is larger than the sum of its proper divisors (298224283).

5666260997 is a wasteful number, since it uses less digits than its factorization.

5666260997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298224282.

The product of its (nonzero) digits is 7348320, while the sum is 56.

The square root of 5666260997 is about 75274.5707194667. The cubic root of 5666260997 is about 1782.7845359351.

The spelling of 5666260997 in words is "five billion, six hundred sixty-six million, two hundred sixty thousand, nine hundred ninety-seven".