12004661109 has 8 divisors (see below), whose sum is σ = 18292816960. Its totient is φ = 6859806336.

The previous prime is 12004661069. The next prime is 12004661159. The reversal of 12004661109 is 90116640021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12004661109 - 2¹³ = 12004652917 is a prime.

It is a super-2 number, since 2×12004661109² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004661159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285825244 + ... + 285825285.

It is an arithmetic number, because the mean of its divisors is an integer number (2286602120).

Almost surely, 2^12004661109 is an apocalyptic number.

It is an amenable number.

12004661109 is a deficient number, since it is larger than the sum of its proper divisors (6288155851).

12004661109 is an equidigital number, since it uses as much as digits as its factorization.

12004661109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571650539.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 12004661109 in words is "twelve billion, four million, six hundred sixty-one thousand, one hundred nine".