216444445430 has 16 divisors (see below), whose sum is σ = 390263726160. Its totient is φ = 86430283872.

The previous prime is 216444445397. The next prime is 216444445439. The reversal of 216444445430 is 34544444612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216444445439) 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 7 ways as a sum of consecutive naturals, for example, 18430625 + ... + 18442364.

It is an arithmetic number, because the mean of its divisors is an integer number (24391482885).

Almost surely, 2^216444445430 is an apocalyptic number.

216444445430 is a deficient number, since it is larger than the sum of its proper divisors (173819280730).

216444445430 is a wasteful number, since it uses less digits than its factorization.

216444445430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36873583.

The product of its (nonzero) digits is 737280, while the sum is 41.

The spelling of 216444445430 in words is "two hundred sixteen billion, four hundred forty-four million, four hundred forty-five thousand, four hundred thirty".