667210245431 has 2 divisors, whose sum is σ = 667210245432. Its totient is φ = 667210245430.

The previous prime is 667210245421. The next prime is 667210245439. The reversal of 667210245431 is 134542012766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667210245431 - 2¹⁴ = 667210229047 is a prime.

It is a super-2 number, since 2×667210245431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667210245439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333605122715 + 333605122716.

It is an arithmetic number, because the mean of its divisors is an integer number (333605122716).

Almost surely, 2^667210245431 is an apocalyptic number.

667210245431 is a deficient number, since it is larger than the sum of its proper divisors (1).

667210245431 is an equidigital number, since it uses as much as digits as its factorization.

667210245431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 667210245431 in words is "six hundred sixty-seven billion, two hundred ten million, two hundred forty-five thousand, four hundred thirty-one".