16061205056 has 84 divisors (see below), whose sum is σ = 36461421108. Its totient is φ = 6976708608.

The previous prime is 16061204983. The next prime is 16061205091. The reversal of 16061205056 is 65050216061.

It can be written as a sum of positive squares in 6 ways, for example, as 43771456 + 16017433600 = 6616^2 + 126560^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207050 + ... + 273846.

It is an arithmetic number, because the mean of its divisors is an integer number (434064537).

Almost surely, 2^16061205056 is an apocalyptic number.

16061205056 is a gapful number since it is divisible by the number (16) 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 16061205056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18230710554).

16061205056 is an abundant number, since it is smaller than the sum of its proper divisors (20400216052).

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

16061205056 is a wasteful number, since it uses less digits than its factorization.

16061205056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66856 (or 66829 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 16061205056 in words is "sixteen billion, sixty-one million, two hundred five thousand, fifty-six".