660055016651 has 2 divisors, whose sum is σ = 660055016652. Its totient is φ = 660055016650.

The previous prime is 660055016609. The next prime is 660055016683. The reversal of 660055016651 is 156610550066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660055016651 - 2⁶ = 660055016587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660055016599 and 660055016608.

It is not a weakly prime, because it can be changed into another prime (660055016051) 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 as a sum of consecutive naturals, namely, 330027508325 + 330027508326.

It is an arithmetic number, because the mean of its divisors is an integer number (330027508326).

Almost surely, 2^660055016651 is an apocalyptic number.

660055016651 is a deficient number, since it is larger than the sum of its proper divisors (1).

660055016651 is an equidigital number, since it uses as much as digits as its factorization.

660055016651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 660055016651 in words is "six hundred sixty billion, fifty-five million, sixteen thousand, six hundred fifty-one".