216575164616 has 16 divisors (see below), whose sum is σ = 408182469900. Its totient is φ = 107726505984.

The previous prime is 216575164609. The next prime is 216575164667. The reversal of 216575164616 is 616461575612.

It can be written as a sum of positive squares in 2 ways, for example, as 216550622500 + 24542116 = 465350^2 + 4954^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70132901 + ... + 70135988.

Almost surely, 2^216575164616 is an apocalyptic number.

It is an amenable number.

216575164616 is a deficient number, since it is larger than the sum of its proper divisors (191607305284).

216575164616 is a wasteful number, since it uses less digits than its factorization.

216575164616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140269088 (or 140269084 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The spelling of 216575164616 in words is "two hundred sixteen billion, five hundred seventy-five million, one hundred sixty-four thousand, six hundred sixteen".