606231115621 has 2 divisors, whose sum is σ = 606231115622. Its totient is φ = 606231115620.

The previous prime is 606231115619. The next prime is 606231115643. The reversal of 606231115621 is 126511132606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358639288225 + 247591827396 = 598865^2 + 497586^2 .

It is a cyclic number.

It is not a de Polignac number, because 606231115621 - 2¹ = 606231115619 is a prime.

Together with 606231115619, 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 (606231115601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303115557810 + 303115557811.

It is an arithmetic number, because the mean of its divisors is an integer number (303115557811).

Almost surely, 2^606231115621 is an apocalyptic number.

It is an amenable number.

606231115621 is a deficient number, since it is larger than the sum of its proper divisors (1).

606231115621 is an equidigital number, since it uses as much as digits as its factorization.

606231115621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 606231115621 in words is "six hundred six billion, two hundred thirty-one million, one hundred fifteen thousand, six hundred twenty-one".