16203216230440 has 32 divisors (see below), whose sum is σ = 36689448230280. Its totient is φ = 6440004410112.

The previous prime is 16203216230431. The next prime is 16203216230489. The reversal of 16203216230440 is 4403261230261.

16203216230440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9129861092356 + 7073355138084 = 3021566^2 + 2659578^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16203216230396 and 16203216230405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290058707 + ... + 1290071266.

Almost surely, 2^{16203216230440} is an apocalyptic number.

16203216230440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16203216230440 is an abundant number, since it is smaller than the sum of its proper divisors (20486231999840).

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

16203216230440 is a wasteful number, since it uses less digits than its factorization.

16203216230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580130141 (or 2580130137 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 16203216230440 in words is "sixteen trillion, two hundred three billion, two hundred sixteen million, two hundred thirty thousand, four hundred forty".