16384272520 has 256 divisors, whose sum is σ = 47941632000. Its totient is φ = 4890240000.

The previous prime is 16384272517. The next prime is 16384272533. The reversal of 16384272520 is 2527248361.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9642631 + ... + 9644329.

It is an arithmetic number, because the mean of its divisors is an integer number (187272000).

Almost surely, 2^16384272520 is an apocalyptic number.

16384272520 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 16384272520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23970816000).

16384272520 is an abundant number, since it is smaller than the sum of its proper divisors (31557359480).

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

16384272520 is a wasteful number, since it uses less digits than its factorization.

16384272520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 16384272520 in words is "sixteen billion, three hundred eighty-four million, two hundred seventy-two thousand, five hundred twenty".