6664242163031 has 2 divisors, whose sum is σ = 6664242163032. Its totient is φ = 6664242163030.

The previous prime is 6664242163027. The next prime is 6664242163081. The reversal of 6664242163031 is 1303612424666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6664242163031 - 2² = 6664242163027 is a prime.

It is a super-2 number, since 2×6664242163031² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664242163081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332121081515 + 3332121081516.

It is an arithmetic number, because the mean of its divisors is an integer number (3332121081516).

Almost surely, 2^{6664242163031} is an apocalyptic number.

6664242163031 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664242163031 is an equidigital number, since it uses as much as digits as its factorization.

6664242163031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 44.

Adding to 6664242163031 its reverse (1303612424666), we get a palindrome (7967854587697).

The spelling of 6664242163031 in words is "six trillion, six hundred sixty-four billion, two hundred forty-two million, one hundred sixty-three thousand, thirty-one".