12051561150 has 72 divisors (see below), whose sum is σ = 32625851544. Its totient is φ = 3189201600.

The previous prime is 12051561143. The next prime is 12051561199. The reversal of 12051561150 is 5116515021.

12051561150 is a `hidden beast` number, since 1 + 2 + 0 + 51 + 561 + 1 + 50 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43269 + ... + 161168.

It is an arithmetic number, because the mean of its divisors is an integer number (453136827).

Almost surely, 2^12051561150 is an apocalyptic number.

12051561150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12051561150 is an abundant number, since it is smaller than the sum of its proper divisors (20574290394).

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

12051561150 is a wasteful number, since it uses less digits than its factorization.

12051561150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204586 (or 204578 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 12051561150 in words is "twelve billion, fifty-one million, five hundred sixty-one thousand, one hundred fifty".