324161907840 has 768 divisors, whose sum is σ = 1216050732000. Its totient is φ = 79272345600.

The previous prime is 324161907833. The next prime is 324161907859. The reversal of 324161907840 is 48709161423.

324161907840 is a `hidden beast` number, since 3 + 2 + 416 + 190 + 7 + 8 + 40 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 183752824896 + 140409082944 = 428664^2 + 374712^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 721963936 + ... + 721964384.

Almost surely, 2^324161907840 is an apocalyptic number.

324161907840 is a gapful number since it is divisible by the number (30) 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 324161907840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608025366000).

324161907840 is an abundant number, since it is smaller than the sum of its proper divisors (891888824160).

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

324161907840 is a wasteful number, since it uses less digits than its factorization.

324161907840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 324161907840 in words is "three hundred twenty-four billion, one hundred sixty-one million, nine hundred seven thousand, eight hundred forty".