215227615268 has 12 divisors (see below), whose sum is σ = 380880331020. Its totient is φ = 106404663552.

The previous prime is 215227615259. The next prime is 215227615301. The reversal of 215227615268 is 862516722512.

It can be written as a sum of positive squares in 2 ways, for example, as 154400271844 + 60827343424 = 392938^2 + 246632^2 .

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, 302285621 + ... + 302286332.

It is an arithmetic number, because the mean of its divisors is an integer number (31740027585).

Almost surely, 2^215227615268 is an apocalyptic number.

It is an amenable number.

215227615268 is a deficient number, since it is larger than the sum of its proper divisors (165652715752).

215227615268 is a wasteful number, since it uses less digits than its factorization.

215227615268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604572046 (or 604572044 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The spelling of 215227615268 in words is "two hundred fifteen billion, two hundred twenty-seven million, six hundred fifteen thousand, two hundred sixty-eight".