215300718916 has 12 divisors (see below), whose sum is σ = 378242315388. Its totient is φ = 107231485952.

The previous prime is 215300718847. The next prime is 215300718947. The reversal of 215300718916 is 619817003512.

It can be written as a sum of positive squares in 2 ways, for example, as 210469912900 + 4830806016 = 458770^2 + 69504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104717221 + ... + 104719276.

It is an arithmetic number, because the mean of its divisors is an integer number (31520192949).

Almost surely, 2^215300718916 is an apocalyptic number.

It is an amenable number.

215300718916 is a deficient number, since it is larger than the sum of its proper divisors (162941596472).

215300718916 is a wasteful number, since it uses less digits than its factorization.

215300718916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209436758 (or 209436756 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 215300718916 in words is "two hundred fifteen billion, three hundred million, seven hundred eighteen thousand, nine hundred sixteen".