12001516000 has 48 divisors (see below), whose sum is σ = 29487734640. Its totient is φ = 4800604800.

The previous prime is 12001515979. The next prime is 12001516001. The reversal of 12001516000 is 61510021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001516001) 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, 1496190 + ... + 1504189.

It is an arithmetic number, because the mean of its divisors is an integer number (614327805).

Almost surely, 2^12001516000 is an apocalyptic number.

12001516000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001516000 is an abundant number, since it is smaller than the sum of its proper divisors (17486218640).

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

12001516000 is an equidigital number, since it uses as much as digits as its factorization.

12001516000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000404 (or 3000386 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The spelling of 12001516000 in words is "twelve billion, one million, five hundred sixteen thousand".