5564353661 has 16 divisors (see below), whose sum is σ = 5992358400. Its totient is φ = 5150941488.

The previous prime is 5564353631. The next prime is 5564353673. The reversal of 5564353661 is 1663534655.

5564353661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5564353661 - 2¹⁴ = 5564337277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5564353601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172346 + ... + 202068.

It is an arithmetic number, because the mean of its divisors is an integer number (374522400).

Almost surely, 2^5564353661 is an apocalyptic number.

It is an amenable number.

5564353661 is a deficient number, since it is larger than the sum of its proper divisors (428004739).

5564353661 is a wasteful number, since it uses less digits than its factorization.

5564353661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29968.

The product of its digits is 972000, while the sum is 44.

The square root of 5564353661 is about 74594.5953873335. The cubic root of 5564353661 is about 1772.0320604113.

The spelling of 5564353661 in words is "five billion, five hundred sixty-four million, three hundred fifty-three thousand, six hundred sixty-one".