326604051640 has 16 divisors (see below), whose sum is σ = 734859116280. Its totient is φ = 130641620640.

The previous prime is 326604051601. The next prime is 326604051661. The reversal of 326604051640 is 46150406623.

It is a self number, because there is not a number n which added to its sum of digits gives 326604051640.

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 3 ways as a sum of consecutive naturals, for example, 4082550606 + ... + 4082550685.

Almost surely, 2^326604051640 is an apocalyptic number.

It is an amenable number.

326604051640 is an abundant number, since it is smaller than the sum of its proper divisors (408255064640).

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

326604051640 is a wasteful number, since it uses less digits than its factorization.

326604051640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165101302 (or 8165101298 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 326604051640 in words is "three hundred twenty-six billion, six hundred four million, fifty-one thousand, six hundred forty".