12156004608 has 108 divisors (see below), whose sum is σ = 35561503824. Its totient is φ = 3683609600.

The previous prime is 12156004591. The next prime is 12156004633. The reversal of 12156004608 is 80640065121.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27523 + ... + 158333.

Almost surely, 2^12156004608 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 12156004608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17780751912).

12156004608 is an abundant number, since it is smaller than the sum of its proper divisors (23405499216).

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

12156004608 is a wasteful number, since it uses less digits than its factorization.

12156004608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130852 (or 130827 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 12156004608 its reverse (80640065121), we get a palindrome (92796069729).

The spelling of 12156004608 in words is "twelve billion, one hundred fifty-six million, four thousand, six hundred eight".