126664433430061 has 2 divisors, whose sum is σ = 126664433430062. Its totient is φ = 126664433430060.

The previous prime is 126664433430001. The next prime is 126664433430167. The reversal of 126664433430061 is 160034334466621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107065272145225 + 19599161284836 = 10347235^2 + 4427094^2 .

It is a cyclic number.

It is not a de Polignac number, because 126664433430061 - 2¹⁷ = 126664433298989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126664433429987 and 126664433430014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126664433430001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63332216715030 + 63332216715031.

It is an arithmetic number, because the mean of its divisors is an integer number (63332216715031).

Almost surely, 2^{126664433430061} is an apocalyptic number.

It is an amenable number.

126664433430061 is a deficient number, since it is larger than the sum of its proper divisors (1).

126664433430061 is an equidigital number, since it uses as much as digits as its factorization.

126664433430061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 49.

Adding to 126664433430061 its reverse (160034334466621), we get a palindrome (286698767896682).

The spelling of 126664433430061 in words is "one hundred twenty-six trillion, six hundred sixty-four billion, four hundred thirty-three million, four hundred thirty thousand, sixty-one".