214352646661 has 2 divisors, whose sum is σ = 214352646662. Its totient is φ = 214352646660.

The previous prime is 214352646659. The next prime is 214352646667. The reversal of 214352646661 is 166646253412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193855284100 + 20497362561 = 440290^2 + 143169^2 .

It is a cyclic number.

It is not a de Polignac number, because 214352646661 - 2¹ = 214352646659 is a prime.

Together with 214352646659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214352646667) 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, 107176323330 + 107176323331.

It is an arithmetic number, because the mean of its divisors is an integer number (107176323331).

Almost surely, 2^214352646661 is an apocalyptic number.

It is an amenable number.

214352646661 is a deficient number, since it is larger than the sum of its proper divisors (1).

214352646661 is an equidigital number, since it uses as much as digits as its factorization.

214352646661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 46.

The spelling of 214352646661 in words is "two hundred fourteen billion, three hundred fifty-two million, six hundred forty-six thousand, six hundred sixty-one".