216755032344 has 64 divisors (see below), whose sum is σ = 544828537440. Its totient is φ = 71859809280.

The previous prime is 216755032331. The next prime is 216755032349. The reversal of 216755032344 is 443230557612.

216755032344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216755032344² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216755032296 and 216755032305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216755032349) 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 15 ways as a sum of consecutive naturals, for example, 17643484 + ... + 17655764.

Almost surely, 2^216755032344 is an apocalyptic number.

216755032344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216755032344 is an abundant number, since it is smaller than the sum of its proper divisors (328073505096).

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

216755032344 is a wasteful number, since it uses less digits than its factorization.

216755032344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16220 (or 16216 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

Adding to 216755032344 its reverse (443230557612), we get a palindrome (659985589956).

The spelling of 216755032344 in words is "two hundred sixteen billion, seven hundred fifty-five million, thirty-two thousand, three hundred forty-four".