216352247066 has 8 divisors (see below), whose sum is σ = 324530351040. Its totient is φ = 108175463388.

The previous prime is 216352247063. The next prime is 216352247099. The reversal of 216352247066 is 660742253612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (216352247063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425645 + ... + 783503.

It is an arithmetic number, because the mean of its divisors is an integer number (40566293880).

Almost surely, 2^216352247066 is an apocalyptic number.

216352247066 is a deficient number, since it is larger than the sum of its proper divisors (108178103974).

216352247066 is a wasteful number, since it uses less digits than its factorization.

216352247066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660148.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 216352247066 in words is "two hundred sixteen billion, three hundred fifty-two million, two hundred forty-seven thousand, sixty-six".