16426587840 has 224 divisors, whose sum is σ = 56376880896. Its totient is φ = 4028313600.

The previous prime is 16426587839. The next prime is 16426587857. The reversal of 16426587840 is 4878562461.

16426587840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 3529515 + ... + 3534165.

It is an arithmetic number, because the mean of its divisors is an integer number (251682504).

Almost surely, 2^16426587840 is an apocalyptic number.

16426587840 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 16426587840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28188440448).

16426587840 is an abundant number, since it is smaller than the sum of its proper divisors (39950293056).

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

16426587840 is a wasteful number, since it uses less digits than its factorization.

16426587840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 16426587840 in words is "sixteen billion, four hundred twenty-six million, five hundred eighty-seven thousand, eight hundred forty".