20323665308 has 12 divisors (see below), whose sum is σ = 37658556432. Its totient is φ = 9564077760.

The previous prime is 20323665293. The next prime is 20323665311. The reversal of 20323665308 is 80356632302.

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, 149438648 + ... + 149438783.

It is an arithmetic number, because the mean of its divisors is an integer number (3138213036).

Almost surely, 2^20323665308 is an apocalyptic number.

It is an amenable number.

20323665308 is a deficient number, since it is larger than the sum of its proper divisors (17334891124).

20323665308 is a wasteful number, since it uses less digits than its factorization.

20323665308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298877452 (or 298877450 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 20323665308 in words is "twenty billion, three hundred twenty-three million, six hundred sixty-five thousand, three hundred eight".