216113311612 has 24 divisors (see below), whose sum is σ = 412632984960. Its totient is φ = 98220698160.

The previous prime is 216113311591. The next prime is 216113311627.

216113311612 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34983 + ... + 658369.

It is an arithmetic number, because the mean of its divisors is an integer number (17193041040).

Almost surely, 2^216113311612 is an apocalyptic number.

216113311612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216113311612 is a deficient number, since it is larger than the sum of its proper divisors (196519673348).

216113311612 is a wasteful number, since it uses less digits than its factorization.

216113311612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631281 (or 631279 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

It can be divided in two parts, 216113 and 311612, that added together give a palindrome (527725).

The spelling of 216113311612 in words is "two hundred sixteen billion, one hundred thirteen million, three hundred eleven thousand, six hundred twelve".