660443331047 has 2 divisors, whose sum is σ = 660443331048. Its totient is φ = 660443331046.

The previous prime is 660443331013. The next prime is 660443331077. The reversal of 660443331047 is 740133344066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660443331047 - 2²² = 660439136743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660443330995 and 660443331013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660443331077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330221665523 + 330221665524.

It is an arithmetic number, because the mean of its divisors is an integer number (330221665524).

Almost surely, 2^660443331047 is an apocalyptic number.

660443331047 is a deficient number, since it is larger than the sum of its proper divisors (1).

660443331047 is an equidigital number, since it uses as much as digits as its factorization.

660443331047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 41.

The spelling of 660443331047 in words is "six hundred sixty billion, four hundred forty-three million, three hundred thirty-one thousand, forty-seven".