16095321648 has 320 divisors, whose sum is σ = 56722560000. Its totient is φ = 4355866368.

The previous prime is 16095321637. The next prime is 16095321673. The reversal of 16095321648 is 84612359061.

16095321648 is a `hidden beast` number, since 1 + 60 + 9 + 532 + 16 + 48 = 666.

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, 2812486 + ... + 2818202.

It is an arithmetic number, because the mean of its divisors is an integer number (177258000).

Almost surely, 2^16095321648 is an apocalyptic number.

16095321648 is a gapful number since it is divisible by the number (18) 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 16095321648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28361280000).

16095321648 is an abundant number, since it is smaller than the sum of its proper divisors (40627238352).

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

16095321648 is a wasteful number, since it uses less digits than its factorization.

16095321648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774 (or 5748 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16095321648 in words is "sixteen billion, ninety-five million, three hundred twenty-one thousand, six hundred forty-eight".