12164827784540 has 96 divisors (see below), whose sum is σ = 25698828355200. Its totient is φ = 4836959723520.

The previous prime is 12164827784521. The next prime is 12164827784569. The reversal of 12164827784540 is 4548772846121.

It is a self number, because there is not a number n which added to its sum of digits gives 12164827784540.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4648385312 + ... + 4648387928.

It is an arithmetic number, because the mean of its divisors is an integer number (267696128700).

Almost surely, 2^{12164827784540} is an apocalyptic number.

12164827784540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12164827784540 is an abundant number, since it is smaller than the sum of its proper divisors (13534000570660).

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

12164827784540 is a wasteful number, since it uses less digits than its factorization.

12164827784540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815 (or 4813 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 59.

The spelling of 12164827784540 in words is "twelve trillion, one hundred sixty-four billion, eight hundred twenty-seven million, seven hundred eighty-four thousand, five hundred forty".