12000445664 has 12 divisors (see below), whose sum is σ = 23625877464. Its totient is φ = 6000222816.

The previous prime is 12000445663. The next prime is 12000445669. The reversal of 12000445664 is 46654400021.

It is a super-2 number, since 2×12000445664² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 375013927 = 12000445664 / (1 + 2 + 0 + 0 + 0 + 4 + 4 + 5 + 6 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 12000445664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000445663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187506932 + ... + 187506995.

It is an arithmetic number, because the mean of its divisors is an integer number (1968823122).

Almost surely, 2^12000445664 is an apocalyptic number.

It is an amenable number.

12000445664 is a deficient number, since it is larger than the sum of its proper divisors (11625431800).

12000445664 is an equidigital number, since it uses as much as digits as its factorization.

12000445664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375013937 (or 375013929 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 12000445664 its reverse (46654400021), we get a palindrome (58654845685).

The spelling of 12000445664 in words is "twelve billion, four hundred forty-five thousand, six hundred sixty-four".