6660655001 has 32 divisors (see below), whose sum is σ = 8949927168. Its totient is φ = 4787159040.

The previous prime is 6660654989. The next prime is 6660655003. The reversal of 6660655001 is 1005560666.

It is a cyclic number.

It is not a de Polignac number, because 6660655001 - 2³⁰ = 5586913177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6660655003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2418041 + ... + 2420793.

It is an arithmetic number, because the mean of its divisors is an integer number (279685224).

Almost surely, 2^6660655001 is an apocalyptic number.

It is an amenable number.

6660655001 is a deficient number, since it is larger than the sum of its proper divisors (2289272167).

6660655001 is a wasteful number, since it uses less digits than its factorization.

6660655001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 6660655001 is about 81612.8360063538. The cubic root of 6660655001 is about 1881.5061682324.

The spelling of 6660655001 in words is "six billion, six hundred sixty million, six hundred fifty-five thousand, one".