667407474733 has 2 divisors, whose sum is σ = 667407474734. Its totient is φ = 667407474732.

The previous prime is 667407474707. The next prime is 667407474751. The reversal of 667407474733 is 337474704766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619830267849 + 47577206884 = 787293^2 + 218122^2 .

It is a cyclic number.

It is not a de Polignac number, because 667407474733 - 2⁹ = 667407474221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667407474793) 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, 333703737366 + 333703737367.

It is an arithmetic number, because the mean of its divisors is an integer number (333703737367).

Almost surely, 2^667407474733 is an apocalyptic number.

It is an amenable number.

667407474733 is a deficient number, since it is larger than the sum of its proper divisors (1).

667407474733 is an equidigital number, since it uses as much as digits as its factorization.

667407474733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49787136, while the sum is 58.

The spelling of 667407474733 in words is "six hundred sixty-seven billion, four hundred seven million, four hundred seventy-four thousand, seven hundred thirty-three".