216183207223177 has 2 divisors, whose sum is σ = 216183207223178. Its totient is φ = 216183207223176.

The previous prime is 216183207223147. The next prime is 216183207223201. The reversal of 216183207223177 is 771322702381612.

216183207223177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133690111253136 + 82493095970041 = 11562444^2 + 9082571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216183207223177 is a prime.

It is not a weakly prime, because it can be changed into another prime (216183207223147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108091603611588 + 108091603611589.

It is an arithmetic number, because the mean of its divisors is an integer number (108091603611589).

Almost surely, 2^{216183207223177} is an apocalyptic number.

It is an amenable number.

216183207223177 is a deficient number, since it is larger than the sum of its proper divisors (1).

216183207223177 is an equidigital number, since it uses as much as digits as its factorization.

216183207223177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 216183207223177 in words is "two hundred sixteen trillion, one hundred eighty-three billion, two hundred seven million, two hundred twenty-three thousand, one hundred seventy-seven".