242666648177 has 2 divisors, whose sum is σ = 242666648178. Its totient is φ = 242666648176.

The previous prime is 242666648167. The next prime is 242666648179. The reversal of 242666648177 is 771846666242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221731741456 + 20934906721 = 470884^2 + 144689^2 .

It is a cyclic number.

It is not a de Polignac number, because 242666648177 - 2²⁶ = 242599539313 is a prime.

Together with 242666648179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242666648179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121333324088 + 121333324089.

It is an arithmetic number, because the mean of its divisors is an integer number (121333324089).

Almost surely, 2^242666648177 is an apocalyptic number.

It is an amenable number.

242666648177 is a deficient number, since it is larger than the sum of its proper divisors (1).

242666648177 is an equidigital number, since it uses as much as digits as its factorization.

242666648177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32514048, while the sum is 59.

The spelling of 242666648177 in words is "two hundred forty-two billion, six hundred sixty-six million, six hundred forty-eight thousand, one hundred seventy-seven".