12065621700 has 72 divisors (see below), whose sum is σ = 38083500000. Its totient is φ = 2924998400.

The previous prime is 12065621653. The next prime is 12065621707. The reversal of 12065621700 is 712656021.

12065621700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12065621707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1824825 + ... + 1831424.

It is an arithmetic number, because the mean of its divisors is an integer number (528937500).

Almost surely, 2^12065621700 is an apocalyptic number.

12065621700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12065621700 is an abundant number, since it is smaller than the sum of its proper divisors (26017878300).

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

12065621700 is a wasteful number, since it uses less digits than its factorization.

12065621700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656277 (or 3656270 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 12065621700 in words is "twelve billion, sixty-five million, six hundred twenty-one thousand, seven hundred".