16055509530 has 64 divisors (see below), whose sum is σ = 39621898368. Its totient is φ = 4160782080.

The previous prime is 16055509517. The next prime is 16055509601. The reversal of 16055509530 is 3590555061.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971940 + ... + 988320.

It is an arithmetic number, because the mean of its divisors is an integer number (619092162).

Almost surely, 2^16055509530 is an apocalyptic number.

16055509530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16055509530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19810949184).

16055509530 is an abundant number, since it is smaller than the sum of its proper divisors (23566388838).

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

16055509530 is a wasteful number, since it uses less digits than its factorization.

16055509530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311.

The product of its (nonzero) digits is 101250, while the sum is 39.

The spelling of 16055509530 in words is "sixteen billion, fifty-five million, five hundred nine thousand, five hundred thirty".