216265631232 has 160 divisors (see below), whose sum is σ = 659341799424. Its totient is φ = 61706649600.

The previous prime is 216265631203. The next prime is 216265631233. The reversal of 216265631232 is 232136562612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216265631233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8169057 + ... + 8195487.

Almost surely, 2^216265631232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216265631232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329670899712).

216265631232 is an abundant number, since it is smaller than the sum of its proper divisors (443076168192).

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

216265631232 is an equidigital number, since it uses as much as digits as its factorization.

216265631232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27220 (or 27204 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 216265631232 in words is "two hundred sixteen billion, two hundred sixty-five million, six hundred thirty-one thousand, two hundred thirty-two".