216133331612 has 48 divisors (see below), whose sum is σ = 413685522432. Its totient is φ = 97988594880.

The previous prime is 216133331551. The next prime is 216133331621.

216133331612 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 15 ways as a sum of consecutive naturals, for example, 40754153 + ... + 40759455.

It is an arithmetic number, because the mean of its divisors is an integer number (8618448384).

Almost surely, 2^216133331612 is an apocalyptic number.

216133331612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216133331612 is a deficient number, since it is larger than the sum of its proper divisors (197552190820).

216133331612 is a wasteful number, since it uses less digits than its factorization.

216133331612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538 (or 7536 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

It can be divided in two parts, 216133 and 331612, that added together give a palindrome (547745).

The spelling of 216133331612 in words is "two hundred sixteen billion, one hundred thirty-three million, three hundred thirty-one thousand, six hundred twelve".