666056060601 has 8 divisors (see below), whose sum is σ = 888090345120. Its totient is φ = 444029574912.

The previous prime is 666056060581. The next prime is 666056060609. The reversal of 666056060601 is 106060650666.

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

It is not a de Polignac number, because 666056060601 - 2²⁵ = 666022506169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (666056060609) 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 7 ways as a sum of consecutive naturals, for example, 1747431 + ... + 2094188.

It is an arithmetic number, because the mean of its divisors is an integer number (111011293140).

Almost surely, 2^666056060601 is an apocalyptic number.

It is an amenable number.

666056060601 is a deficient number, since it is larger than the sum of its proper divisors (222034284519).

666056060601 is a wasteful number, since it uses less digits than its factorization.

666056060601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899415.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 666056060601 in words is "six hundred sixty-six billion, fifty-six million, sixty thousand, six hundred one".