6336566661 has 8 divisors (see below), whose sum is σ = 8491643424. Its totient is φ = 4202933840.

The previous prime is 6336566647. The next prime is 6336566693. The reversal of 6336566661 is 1666656336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6336566661 - 2⁶ = 6336566597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6336566661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6336566611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5360295 + ... + 5361476.

It is an arithmetic number, because the mean of its divisors is an integer number (1061455428).

Almost surely, 2^6336566661 is an apocalyptic number.

It is an amenable number.

6336566661 is a deficient number, since it is larger than the sum of its proper divisors (2155076763).

6336566661 is a wasteful number, since it uses less digits than its factorization.

6336566661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10721971.

The product of its digits is 2099520, while the sum is 48.

The square root of 6336566661 is about 79602.5543622816. The cubic root of 6336566661 is about 1850.4811663936.

The spelling of 6336566661 in words is "six billion, three hundred thirty-six million, five hundred sixty-six thousand, six hundred sixty-one".