216352666610 has 32 divisors (see below), whose sum is σ = 393811520112. Its totient is φ = 85570732800.

The previous prime is 216352666603. The next prime is 216352666619. The reversal of 216352666610 is 16666253612.

It can be written as a sum of positive squares in 8 ways, for example, as 171912232129 + 44440434481 = 414623^2 + 210809^2 .

It is not an unprimeable number, because it can be changed into a prime (216352666619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623084 + ... + 906056.

Almost surely, 2^216352666610 is an apocalyptic number.

216352666610 is a deficient number, since it is larger than the sum of its proper divisors (177458853502).

216352666610 is a wasteful number, since it uses less digits than its factorization.

216352666610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283838.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 216352666610 in words is "two hundred sixteen billion, three hundred fifty-two million, six hundred sixty-six thousand, six hundred ten".