667441613357 has 2 divisors, whose sum is σ = 667441613358. Its totient is φ = 667441613356.

The previous prime is 667441613353. The next prime is 667441613383. The reversal of 667441613357 is 753316144766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661767607081 + 5674006276 = 813491^2 + 75326^2 .

It is a cyclic number.

It is not a de Polignac number, because 667441613357 - 2² = 667441613353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667441613299 and 667441613308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667441613353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333720806678 + 333720806679.

It is an arithmetic number, because the mean of its divisors is an integer number (333720806679).

Almost surely, 2^667441613357 is an apocalyptic number.

It is an amenable number.

667441613357 is a deficient number, since it is larger than the sum of its proper divisors (1).

667441613357 is an equidigital number, since it uses as much as digits as its factorization.

667441613357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 53.

The spelling of 667441613357 in words is "six hundred sixty-seven billion, four hundred forty-one million, six hundred thirteen thousand, three hundred fifty-seven".