216168751300973 has 2 divisors, whose sum is σ = 216168751300974. Its totient is φ = 216168751300972.

The previous prime is 216168751300927. The next prime is 216168751301023. The reversal of 216168751300973 is 379003157861612.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135726274626244 + 80442476674729 = 11650162^2 + 8968973^2 .

It is a cyclic number.

It is not a de Polignac number, because 216168751300973 - 2⁸ = 216168751300717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216168751300903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108084375650486 + 108084375650487.

It is an arithmetic number, because the mean of its divisors is an integer number (108084375650487).

Almost surely, 2^{216168751300973} is an apocalyptic number.

It is an amenable number.

216168751300973 is a deficient number, since it is larger than the sum of its proper divisors (1).

216168751300973 is an equidigital number, since it uses as much as digits as its factorization.

216168751300973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 216168751300973 in words is "two hundred sixteen trillion, one hundred sixty-eight billion, seven hundred fifty-one million, three hundred thousand, nine hundred seventy-three".