660060861846047 has 2 divisors, whose sum is σ = 660060861846048. Its totient is φ = 660060861846046.

The previous prime is 660060861845963. The next prime is 660060861846107. The reversal of 660060861846047 is 740648168060066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660060861846047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660060861896047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330030430923023 + 330030430923024.

It is an arithmetic number, because the mean of its divisors is an integer number (330030430923024).

Almost surely, 2^{660060861846047} is an apocalyptic number.

660060861846047 is a deficient number, since it is larger than the sum of its proper divisors (1).

660060861846047 is an equidigital number, since it uses as much as digits as its factorization.

660060861846047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 660060861846047 in words is "six hundred sixty trillion, sixty billion, eight hundred sixty-one million, eight hundred forty-six thousand, forty-seven".