16382553880 has 256 divisors, whose sum is σ = 50234204160. Its totient is φ = 4650393600.

The previous prime is 16382553851. The next prime is 16382553959. The reversal of 16382553880 is 8835528361.

It is a happy number.

It is a super-2 number, since 2×16382553880² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1618114 + ... + 1628206.

It is an arithmetic number, because the mean of its divisors is an integer number (196227360).

Almost surely, 2^16382553880 is an apocalyptic number.

16382553880 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 16382553880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25117102080).

16382553880 is an abundant number, since it is smaller than the sum of its proper divisors (33851650280).

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

16382553880 is a wasteful number, since it uses less digits than its factorization.

16382553880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 16382553880 in words is "sixteen billion, three hundred eighty-two million, five hundred fifty-three thousand, eight hundred eighty".