16495221330 has 288 divisors, whose sum is σ = 51089875200. Its totient is φ = 3680861184.

The previous prime is 16495221313. The next prime is 16495221343. The reversal of 16495221330 is 3312259461.

16495221330 is a `hidden beast` number, since 1 + 649 + 5 + 2 + 2 + 1 + 3 + 3 + 0 = 666.

16495221330 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 143 ways as a sum of consecutive naturals, for example, 39367861 + ... + 39368279.

It is an arithmetic number, because the mean of its divisors is an integer number (177395400).

Almost surely, 2^16495221330 is an apocalyptic number.

16495221330 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 16495221330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25544937600).

16495221330 is an abundant number, since it is smaller than the sum of its proper divisors (34594653870).

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

16495221330 is a wasteful number, since it uses less digits than its factorization.

16495221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 16495221330 in words is "sixteen billion, four hundred ninety-five million, two hundred twenty-one thousand, three hundred thirty".