20325318008 has 8 divisors (see below), whose sum is σ = 38109971280. Its totient is φ = 10162659000.

The previous prime is 20325317993. The next prime is 20325318019. The reversal of 20325318008 is 80081352302.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270332368 + ... + 1270332383.

It is an arithmetic number, because the mean of its divisors is an integer number (4763746410).

Almost surely, 2^20325318008 is an apocalyptic number.

It is an amenable number.

20325318008 is a deficient number, since it is larger than the sum of its proper divisors (17784653272).

20325318008 is a wasteful number, since it uses less digits than its factorization.

20325318008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540664757 (or 2540664753 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20325318008 in words is "twenty billion, three hundred twenty-five million, three hundred eighteen thousand, eight".