12550185216 has 324 divisors, whose sum is σ = 38875898880. Its totient is φ = 3892561920.

The previous prime is 12550185211. The next prime is 12550185229. The reversal of 12550185216 is 61258105521.

12550185216 is a `hidden beast` number, since 1 + 2 + 550 + 1 + 85 + 21 + 6 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12550185211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65707681 + ... + 65707871.

Almost surely, 2^12550185216 is an apocalyptic number.

12550185216 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 12550185216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19437949440).

12550185216 is an abundant number, since it is smaller than the sum of its proper divisors (26325713664).

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

12550185216 is a wasteful number, since it uses less digits than its factorization.

12550185216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 12550185216 in words is "twelve billion, five hundred fifty million, one hundred eighty-five thousand, two hundred sixteen".