216889127536 has 30 divisors (see below), whose sum is σ = 429353894840. Its totient is φ = 106137215328.

The previous prime is 216889127531. The next prime is 216889127551. The reversal of 216889127536 is 635721988612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216889127531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3032916 + ... + 3103603.

Almost surely, 2^216889127536 is an apocalyptic number.

It is an amenable number.

216889127536 is a deficient number, since it is larger than the sum of its proper divisors (212464767304).

216889127536 is an equidigital number, since it uses as much as digits as its factorization.

216889127536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136621 (or 6136568 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The spelling of 216889127536 in words is "two hundred sixteen billion, eight hundred eighty-nine million, one hundred twenty-seven thousand, five hundred thirty-six".