12164522454 has 48 divisors (see below), whose sum is σ = 30290008320. Its totient is φ = 3456154800.

The previous prime is 12164522441. The next prime is 12164522467. The reversal of 12164522454 is 45422546121.

12164522454 is a `hidden beast` number, since 1 + 2 + 1 + 645 + 2 + 2 + 4 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (12164522441) and next prime (12164522467).

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 23 ways as a sum of consecutive naturals, for example, 247122 + ... + 292229.

It is an arithmetic number, because the mean of its divisors is an integer number (631041840).

Almost surely, 2^12164522454 is an apocalyptic number.

12164522454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12164522454 is an abundant number, since it is smaller than the sum of its proper divisors (18125485866).

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

12164522454 is a wasteful number, since it uses less digits than its factorization.

12164522454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539545 (or 539542 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 12164522454 in words is "twelve billion, one hundred sixty-four million, five hundred twenty-two thousand, four hundred fifty-four".