16000055449560 has 640 divisors, whose sum is σ = 66228038553600. Its totient is φ = 3373807334400.

The previous prime is 16000055449531. The next prime is 16000055449561. The reversal of 16000055449560 is 6594455000061.

16000055449560 is a `hidden beast` number, since 1 + 6 + 0 + 0 + 0 + 0 + 554 + 4 + 95 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000055449561) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 518608135 + ... + 518638985.

It is an arithmetic number, because the mean of its divisors is an integer number (103481310240).

Almost surely, 2^{16000055449560} is an apocalyptic number.

16000055449560 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 16000055449560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33114019276800).

16000055449560 is an abundant number, since it is smaller than the sum of its proper divisors (50227983104040).

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

16000055449560 is a wasteful number, since it uses less digits than its factorization.

16000055449560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32653 (or 32640 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 16000055449560 in words is "sixteen trillion, fifty-five million, four hundred forty-nine thousand, five hundred sixty".