123296677661 has 2 divisors, whose sum is σ = 123296677662. Its totient is φ = 123296677660.

The previous prime is 123296677627. The next prime is 123296677687. The reversal of 123296677661 is 166776692321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97790671225 + 25506006436 = 312715^2 + 159706^2 .

It is a cyclic number.

It is not a de Polignac number, because 123296677661 - 2¹⁰ = 123296676637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123296677597 and 123296677606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123296677601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61648338830 + 61648338831.

It is an arithmetic number, because the mean of its divisors is an integer number (61648338831).

Almost surely, 2^123296677661 is an apocalyptic number.

It is an amenable number.

123296677661 is a deficient number, since it is larger than the sum of its proper divisors (1).

123296677661 is an equidigital number, since it uses as much as digits as its factorization.

123296677661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The spelling of 123296677661 in words is "one hundred twenty-three billion, two hundred ninety-six million, six hundred seventy-seven thousand, six hundred sixty-one".