1466631643567 has 2 divisors, whose sum is σ = 1466631643568. Its totient is φ = 1466631643566.

The previous prime is 1466631643537. The next prime is 1466631643571. The reversal of 1466631643567 is 7653461366641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1466631643567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1466631643507) 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, 733315821783 + 733315821784.

It is an arithmetic number, because the mean of its divisors is an integer number (733315821784).

Almost surely, 2^{1466631643567} is an apocalyptic number.

1466631643567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1466631643567 is an equidigital number, since it uses as much as digits as its factorization.

1466631643567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 58.

The spelling of 1466631643567 in words is "one trillion, four hundred sixty-six billion, six hundred thirty-one million, six hundred forty-three thousand, five hundred sixty-seven".