216441115460 has 24 divisors (see below), whose sum is σ = 470199665880. Its totient is φ = 83591051264.

The previous prime is 216441115351. The next prime is 216441115487. The reversal of 216441115460 is 64511144612.

It can be written as a sum of positive squares in 4 ways, for example, as 34485975616 + 181955139844 = 185704^2 + 426562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 216441115460.

It is an unprimeable number.

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, 186586589 + ... + 186587748.

It is an arithmetic number, because the mean of its divisors is an integer number (19591652745).

Almost surely, 2^216441115460 is an apocalyptic number.

216441115460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216441115460 is an abundant number, since it is smaller than the sum of its proper divisors (253758550420).

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

216441115460 is a wasteful number, since it uses less digits than its factorization.

216441115460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373174375 (or 373174373 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 216441115460 in words is "two hundred sixteen billion, four hundred forty-one million, one hundred fifteen thousand, four hundred sixty".