216134144184 has 64 divisors (see below), whose sum is σ = 617761923840. Its totient is φ = 61729032960.

The previous prime is 216134144137. The next prime is 216134144227. The reversal of 216134144184 is 481441431612.

It is a nude number because it is divisible by every one of its digits.

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, 198039 + ... + 686649.

It is an arithmetic number, because the mean of its divisors is an integer number (9652530060).

Almost surely, 2^216134144184 is an apocalyptic number.

216134144184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216134144184 is an abundant number, since it is smaller than the sum of its proper divisors (401627779656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216134144184 is a wasteful number, since it uses less digits than its factorization.

216134144184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491260 (or 491256 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

Adding to 216134144184 its reverse (481441431612), we get a palindrome (697575575796).

The spelling of 216134144184 in words is "two hundred sixteen billion, one hundred thirty-four million, one hundred forty-four thousand, one hundred eighty-four".