12164446278087 has 4 divisors (see below), whose sum is σ = 16219261704120. Its totient is φ = 8109630852056.

The previous prime is 12164446278073. The next prime is 12164446278143. The reversal of 12164446278087 is 78087264446121.

It is a happy number.

12164446278087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12164446278087 - 2¹⁵ = 12164446245319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12164446278087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164446278037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2027407713012 + ... + 2027407713017.

It is an arithmetic number, because the mean of its divisors is an integer number (4054815426030).

Almost surely, 2^{12164446278087} is an apocalyptic number.

12164446278087 is a deficient number, since it is larger than the sum of its proper divisors (4054815426033).

12164446278087 is an equidigital number, since it uses as much as digits as its factorization.

12164446278087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054815426032.

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 12164446278087 in words is "twelve trillion, one hundred sixty-four billion, four hundred forty-six million, two hundred seventy-eight thousand, eighty-seven".