216358853612 has 24 divisors (see below), whose sum is σ = 413066070480. Its totient is φ = 98340802560.

The previous prime is 216358853611. The next prime is 216358853677.

216358853612 is nontrivially palindromic in base 10.

216358853612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216358853612² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216358853611) 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, 1118564 + ... + 1297652.

It is an arithmetic number, because the mean of its divisors is an integer number (17211086270).

Almost surely, 2^216358853612 is an apocalyptic number.

216358853612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216358853612 is a deficient number, since it is larger than the sum of its proper divisors (196707216868).

216358853612 is a wasteful number, since it uses less digits than its factorization.

216358853612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206561 (or 206559 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The spelling of 216358853612 in words is "two hundred sixteen billion, three hundred fifty-eight million, eight hundred fifty-three thousand, six hundred twelve".