1324536666420 has 288 divisors, whose sum is σ = 4123690663680. Its totient is φ = 317394176000.

The previous prime is 1324536666373. The next prime is 1324536666449. The reversal of 1324536666420 is 246666354231.

It is a self number, because there is not a number n which added to its sum of digits gives 1324536666420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 615204064 + ... + 615206216.

It is an arithmetic number, because the mean of its divisors is an integer number (14318370360).

Almost surely, 2^{1324536666420} is an apocalyptic number.

1324536666420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1324536666420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2061845331840).

1324536666420 is an abundant number, since it is smaller than the sum of its proper divisors (2799153997260).

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

1324536666420 is a wasteful number, since it uses less digits than its factorization.

1324536666420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127 (or 3114 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 1324536666420 in words is "one trillion, three hundred twenty-four billion, five hundred thirty-six million, six hundred sixty-six thousand, four hundred twenty".