666407310047 has 2 divisors, whose sum is σ = 666407310048. Its totient is φ = 666407310046.

The previous prime is 666407310001. The next prime is 666407310059. The reversal of 666407310047 is 740013704666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666407310047 - 2¹² = 666407305951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666407312047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333203655023 + 333203655024.

It is an arithmetic number, because the mean of its divisors is an integer number (333203655024).

Almost surely, 2^666407310047 is an apocalyptic number.

666407310047 is a deficient number, since it is larger than the sum of its proper divisors (1).

666407310047 is an equidigital number, since it uses as much as digits as its factorization.

666407310047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 666407310047 in words is "six hundred sixty-six billion, four hundred seven million, three hundred ten thousand, forty-seven".