5526441661 has 4 divisors (see below), whose sum is σ = 5951552572. Its totient is φ = 5101330752.

The previous prime is 5526441643. The next prime is 5526441667. The reversal of 5526441661 is 1661446255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3335640025 + 2190801636 = 57755^2 + 46806^2 .

It is a cyclic number.

It is not a de Polignac number, because 5526441661 - 2⁷ = 5526441533 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 (5526441667) 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 3 ways as a sum of consecutive naturals, for example, 212555436 + ... + 212555461.

It is an arithmetic number, because the mean of its divisors is an integer number (1487888143).

Almost surely, 2^5526441661 is an apocalyptic number.

It is an amenable number.

5526441661 is a deficient number, since it is larger than the sum of its proper divisors (425110911).

5526441661 is a wasteful number, since it uses less digits than its factorization.

5526441661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425110910.

The product of its digits is 172800, while the sum is 40.

The square root of 5526441661 is about 74340.0407653910. The cubic root of 5526441661 is about 1767.9983821851.

The spelling of 5526441661 in words is "five billion, five hundred twenty-six million, four hundred forty-one thousand, six hundred sixty-one".