667613133773 has 2 divisors, whose sum is σ = 667613133774. Its totient is φ = 667613133772.

The previous prime is 667613133769. The next prime is 667613133797. The reversal of 667613133773 is 377331316766.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 594498055369 + 73115078404 = 771037^2 + 270398^2 .

It is a cyclic number.

It is not a de Polignac number, because 667613133773 - 2² = 667613133769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667613133703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333806566886 + 333806566887.

It is an arithmetic number, because the mean of its divisors is an integer number (333806566887).

Almost surely, 2^667613133773 is an apocalyptic number.

It is an amenable number.

667613133773 is a deficient number, since it is larger than the sum of its proper divisors (1).

667613133773 is an equidigital number, since it uses as much as digits as its factorization.

667613133773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 53.

The spelling of 667613133773 in words is "six hundred sixty-seven billion, six hundred thirteen million, one hundred thirty-three thousand, seven hundred seventy-three".