660606055611 has 16 divisors (see below), whose sum is σ = 959137651200. Its totient is φ = 402837811488.

The previous prime is 660606055601. The next prime is 660606055621. The reversal of 660606055611 is 116550606066.

It is an interprime number because it is at equal distance from previous prime (660606055601) and next prime (660606055621).

It is not a de Polignac number, because 660606055611 - 2⁹ = 660606055099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660606055601) 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, 199818691 + ... + 199821996.

It is an arithmetic number, because the mean of its divisors is an integer number (59946103200).

Almost surely, 2^660606055611 is an apocalyptic number.

660606055611 is a deficient number, since it is larger than the sum of its proper divisors (298531595589).

660606055611 is a wasteful number, since it uses less digits than its factorization.

660606055611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399640738.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 660606055611 in words is "six hundred sixty billion, six hundred six million, fifty-five thousand, six hundred eleven".