213330197656579 has 2 divisors, whose sum is σ = 213330197656580. Its totient is φ = 213330197656578.

The previous prime is 213330197656577. The next prime is 213330197656603. The reversal of 213330197656579 is 975656791033312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213330197656579 - 2¹ = 213330197656577 is a prime.

Together with 213330197656577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213330197656577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665098828289 + 106665098828290.

It is an arithmetic number, because the mean of its divisors is an integer number (106665098828290).

Almost surely, 2^{213330197656579} is an apocalyptic number.

213330197656579 is a deficient number, since it is larger than the sum of its proper divisors (1).

213330197656579 is an equidigital number, since it uses as much as digits as its factorization.

213330197656579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192893400, while the sum is 67.

The spelling of 213330197656579 in words is "two hundred thirteen trillion, three hundred thirty billion, one hundred ninety-seven million, six hundred fifty-six thousand, five hundred seventy-nine".