216303556706 has 16 divisors (see below), whose sum is σ = 329790106368. Its totient is φ = 106373691600.

The previous prime is 216303556691. The next prime is 216303556709. The reversal of 216303556706 is 607655303612.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (216303556709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4414361 + ... + 4463091.

It is an arithmetic number, because the mean of its divisors is an integer number (20611881648).

Almost surely, 2^216303556706 is an apocalyptic number.

216303556706 is a deficient number, since it is larger than the sum of its proper divisors (113486549662).

216303556706 is a wasteful number, since it uses less digits than its factorization.

216303556706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85177.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 216303556706 in words is "two hundred sixteen billion, three hundred three million, five hundred fifty-six thousand, seven hundred six".