216465484564612 has 24 divisors (see below), whose sum is σ = 378862999928280. Its totient is φ = 108218913803520.

The previous prime is 216465484564597. The next prime is 216465484564613.

216465484564612 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 73362068607556 + 143103415957056 = 8565166^2 + 11962584^2 .

It is not an unprimeable number, because it can be changed into a prime (216465484564613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281202064 + ... + 2281296952.

It is an arithmetic number, because the mean of its divisors is an integer number (15785958330345).

Almost surely, 2^{216465484564612} is an apocalyptic number.

It is an amenable number.

216465484564612 is a deficient number, since it is larger than the sum of its proper divisors (162397515363668).

216465484564612 is a wasteful number, since it uses less digits than its factorization.

216465484564612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161751 (or 161749 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 64.

The spelling of 216465484564612 in words is "two hundred sixteen trillion, four hundred sixty-five billion, four hundred eighty-four million, five hundred sixty-four thousand, six hundred twelve".