16350243840 has 528 divisors, whose sum is σ = 65342991168. Its totient is φ = 3702915072.

The previous prime is 16350243829. The next prime is 16350243857. The reversal of 16350243840 is 4834205361.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16350243795 and 16350243804.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55802734 + ... + 55803026.

Almost surely, 2^16350243840 is an apocalyptic number.

16350243840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16350243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32671495584).

16350243840 is an abundant number, since it is smaller than the sum of its proper divisors (48992747328).

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

16350243840 is a wasteful number, since it uses less digits than its factorization.

16350243840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 16350243840 in words is "sixteen billion, three hundred fifty million, two hundred forty-three thousand, eight hundred forty".