213158866643 has 2 divisors, whose sum is σ = 213158866644. Its totient is φ = 213158866642.

The previous prime is 213158866619. The next prime is 213158866667. The reversal of 213158866643 is 346668851312.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (213158866619) and next prime (213158866667).

It is a cyclic number.

It is not a de Polignac number, because 213158866643 - 2⁸ = 213158866387 is a prime.

It is not a weakly prime, because it can be changed into another prime (213158866343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106579433321 + 106579433322.

It is an arithmetic number, because the mean of its divisors is an integer number (106579433322).

Almost surely, 2^213158866643 is an apocalyptic number.

213158866643 is a deficient number, since it is larger than the sum of its proper divisors (1).

213158866643 is an equidigital number, since it uses as much as digits as its factorization.

213158866643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 53.

The spelling of 213158866643 in words is "two hundred thirteen billion, one hundred fifty-eight million, eight hundred sixty-six thousand, six hundred forty-three".