16512206256 has 240 divisors, whose sum is σ = 57315498240. Its totient is φ = 4321175040.

The previous prime is 16512206237. The next prime is 16512206257. The reversal of 16512206256 is 65260221561.

16512206256 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 2 + 20 + 625 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16512206256.

It is not an unprimeable number, because it can be changed into a prime (16512206257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1711815 + ... + 1721433.

It is an arithmetic number, because the mean of its divisors is an integer number (238814576).

Almost surely, 2^16512206256 is an apocalyptic number.

16512206256 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 16512206256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28657749120).

16512206256 is an abundant number, since it is smaller than the sum of its proper divisors (40803291984).

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

16512206256 is a wasteful number, since it uses less digits than its factorization.

16512206256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784 (or 9775 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16512206256 in words is "sixteen billion, five hundred twelve million, two hundred six thousand, two hundred fifty-six".