5666336665 has 16 divisors (see below), whose sum is σ = 7539356736. Its totient is φ = 4053412800.

The previous prime is 5666336647. The next prime is 5666336713.

5666336665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5666336665 - 2⁷ = 5666336537 is a prime.

It is a super-2 number, since 2×5666336665² = 64214742402246644450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841107 + ... + 847816.

It is an arithmetic number, because the mean of its divisors is an integer number (471209796).

Almost surely, 2^5666336665 is an apocalyptic number.

5666336665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5666336665 is a deficient number, since it is larger than the sum of its proper divisors (1873020071).

5666336665 is a wasteful number, since it uses less digits than its factorization.

5666336665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689000.

The product of its digits is 10497600, while the sum is 52.

The square root of 5666336665 is about 75275.0733310835. The cubic root of 5666336665 is about 1782.7924717467.

The spelling of 5666336665 in words is "five billion, six hundred sixty-six million, three hundred thirty-six thousand, six hundred sixty-five".