12016081600 has 84 divisors (see below), whose sum is σ = 30068443800. Its totient is φ = 4724930560.

The previous prime is 12016081591. The next prime is 12016081603. The reversal of 12016081600 is 618061021.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12016081603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30756 + ... + 158044.

Almost surely, 2^12016081600 is an apocalyptic number.

12016081600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12016081600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15034221900).

12016081600 is an abundant number, since it is smaller than the sum of its proper divisors (18052362200).

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

12016081600 is a wasteful number, since it uses less digits than its factorization.

12016081600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127370 (or 127355 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12016081600 in words is "twelve billion, sixteen million, eighty-one thousand, six hundred".