5526366661 has 4 divisors (see below), whose sum is σ = 5541760800. Its totient is φ = 5510972524.

The previous prime is 5526366649. The next prime is 5526366667. The reversal of 5526366661 is 1666636255.

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 5526366661 - 2¹⁹ = 5525842373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5526366667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7696531 + ... + 7697248.

It is an arithmetic number, because the mean of its divisors is an integer number (1385440200).

Almost surely, 2^5526366661 is an apocalyptic number.

It is an amenable number.

5526366661 is a deficient number, since it is larger than the sum of its proper divisors (15394139).

5526366661 is a wasteful number, since it uses less digits than its factorization.

5526366661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15394138.

The product of its digits is 1166400, while the sum is 46.

The square root of 5526366661 is about 74339.5363248924. The cubic root of 5526366661 is about 1767.9903842432.

The spelling of 5526366661 in words is "five billion, five hundred twenty-six million, three hundred sixty-six thousand, six hundred sixty-one".