12005285324880 has 40 divisors (see below), whose sum is σ = 37216384507872. Its totient is φ = 3201409419904.

The previous prime is 12005285324803. The next prime is 12005285324881. The reversal of 12005285324880 is 8842358250021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005285324881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25011010854 + ... + 25011011333.

Almost surely, 2^{12005285324880} is an apocalyptic number.

12005285324880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12005285324880 is an abundant number, since it is smaller than the sum of its proper divisors (25211099182992).

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

12005285324880 is a wasteful number, since it uses less digits than its factorization.

12005285324880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50022022203 (or 50022022197 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The spelling of 12005285324880 in words is "twelve trillion, five billion, two hundred eighty-five million, three hundred twenty-four thousand, eight hundred eighty".