323156632340 has 12 divisors (see below), whose sum is σ = 678628927956. Its totient is φ = 129262652928.

The previous prime is 323156632327. The next prime is 323156632367. The reversal of 323156632340 is 43236651323.

It can be written as a sum of positive squares in 2 ways, for example, as 71790771844 + 251365860496 = 267938^2 + 501364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323156632294 and 323156632303.

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 3 ways as a sum of consecutive naturals, for example, 8078915789 + ... + 8078915828.

It is an arithmetic number, because the mean of its divisors is an integer number (56552410663).

Almost surely, 2^323156632340 is an apocalyptic number.

It is an amenable number.

323156632340 is an abundant number, since it is smaller than the sum of its proper divisors (355472295616).

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

323156632340 is a wasteful number, since it uses less digits than its factorization.

323156632340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157831626 (or 16157831624 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 38.

The spelling of 323156632340 in words is "three hundred twenty-three billion, one hundred fifty-six million, six hundred thirty-two thousand, three hundred forty".