12001473564 has 48 divisors (see below), whose sum is σ = 29042378400. Its totient is φ = 3852769536.

The previous prime is 12001473563. The next prime is 12001473689. The reversal of 12001473564 is 46537410021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001473563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 94722 + ... + 181590.

It is an arithmetic number, because the mean of its divisors is an integer number (605049550).

Almost surely, 2^12001473564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001473564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14521189200).

12001473564 is an abundant number, since it is smaller than the sum of its proper divisors (17040904836).

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

12001473564 is a wasteful number, since it uses less digits than its factorization.

12001473564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87302 (or 87300 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 12001473564 its reverse (46537410021), we get a palindrome (58538883585).

The spelling of 12001473564 in words is "twelve billion, one million, four hundred seventy-three thousand, five hundred sixty-four".