216312060658 has 16 divisors (see below), whose sum is σ = 325217053080. Its totient is φ = 107906576256.

The previous prime is 216312060641. The next prime is 216312060659. The reversal of 216312060658 is 856060213612.

216312060658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 174592772649 + 41719288009 = 417843^2 + 204253^2 .

It is a super-2 number, since 2×216312060658² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216312060658.

It is not an unprimeable number, because it can be changed into a prime (216312060659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171488 + ... + 2268916.

Almost surely, 2^216312060658 is an apocalyptic number.

216312060658 is a deficient number, since it is larger than the sum of its proper divisors (108904992422).

216312060658 is a wasteful number, since it uses less digits than its factorization.

216312060658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99981.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 216312060658 in words is "two hundred sixteen billion, three hundred twelve million, sixty thousand, six hundred fifty-eight".