216188275688375 has 16 divisors (see below), whose sum is σ = 269807444639616. Its totient is φ = 172947750948000.

The previous prime is 216188275688351. The next prime is 216188275688381. The reversal of 216188275688375 is 573886572881612.

It is not a de Polignac number, because 216188275688375 - 2¹⁸ = 216188275426231 is a prime.

It is a super-2 number, since 2×216188275688375² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216188275688296 and 216188275688305.

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, 6768191 + ... + 21867440.

It is an arithmetic number, because the mean of its divisors is an integer number (16862965289976).

Almost surely, 2^{216188275688375} is an apocalyptic number.

216188275688375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216188275688375 is a deficient number, since it is larger than the sum of its proper divisors (53619168951241).

216188275688375 is an equidigital number, since it uses as much as digits as its factorization.

216188275688375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28696043 (or 28696033 counting only the distinct ones).

The product of its digits is 2167603200, while the sum is 77.

The spelling of 216188275688375 in words is "two hundred sixteen trillion, one hundred eighty-eight billion, two hundred seventy-five million, six hundred eighty-eight thousand, three hundred seventy-five".