667294303601 has 2 divisors, whose sum is σ = 667294303602. Its totient is φ = 667294303600.

The previous prime is 667294303589. The next prime is 667294303609. The reversal of 667294303601 is 106303492766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652219375201 + 15074928400 = 807601^2 + 122780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667294303601 is a prime.

It is not a weakly prime, because it can be changed into another prime (667294303609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333647151800 + 333647151801.

It is an arithmetic number, because the mean of its divisors is an integer number (333647151801).

Almost surely, 2^667294303601 is an apocalyptic number.

It is an amenable number.

667294303601 is a deficient number, since it is larger than the sum of its proper divisors (1).

667294303601 is an equidigital number, since it uses as much as digits as its factorization.

667294303601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 667294303601 in words is "six hundred sixty-seven billion, two hundred ninety-four million, three hundred three thousand, six hundred one".