16256355420 has 96 divisors (see below), whose sum is σ = 47167283520. Its totient is φ = 4178442240.

The previous prime is 16256355419. The next prime is 16256355443. The reversal of 16256355420 is 2455365261.

16256355420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1059000 + ... + 1074240.

It is an arithmetic number, because the mean of its divisors is an integer number (491325870).

Almost surely, 2^16256355420 is an apocalyptic number.

16256355420 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 16256355420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23583641760).

16256355420 is an abundant number, since it is smaller than the sum of its proper divisors (30910928100).

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

16256355420 is a wasteful number, since it uses less digits than its factorization.

16256355420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15895 (or 15893 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 16256355420 in words is "sixteen billion, two hundred fifty-six million, three hundred fifty-five thousand, four hundred twenty".