216366942079 has 2 divisors, whose sum is σ = 216366942080. Its totient is φ = 216366942078.

The previous prime is 216366942031. The next prime is 216366942083. The reversal of 216366942079 is 970249663612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216366942079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216366942019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108183471039 + 108183471040.

It is an arithmetic number, because the mean of its divisors is an integer number (108183471040).

Almost surely, 2^216366942079 is an apocalyptic number.

216366942079 is a deficient number, since it is larger than the sum of its proper divisors (1).

216366942079 is an equidigital number, since it uses as much as digits as its factorization.

216366942079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 216366942079 in words is "two hundred sixteen billion, three hundred sixty-six million, nine hundred forty-two thousand, seventy-nine".