12081006721588 has 48 divisors (see below), whose sum is σ = 24695858880000. Its totient is φ = 5063355288576.

The previous prime is 12081006721577. The next prime is 12081006721601. The reversal of 12081006721588 is 88512760018021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031295 + ... + 5318662.

It is an arithmetic number, because the mean of its divisors is an integer number (514497060000).

Almost surely, 2^{12081006721588} is an apocalyptic number.

It is an amenable number.

12081006721588 is an abundant number, since it is smaller than the sum of its proper divisors (12614852158412).

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

12081006721588 is a wasteful number, since it uses less digits than its factorization.

12081006721588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351264 (or 7351262 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 49.

The spelling of 12081006721588 in words is "twelve trillion, eighty-one billion, six million, seven hundred twenty-one thousand, five hundred eighty-eight".