20323665364 has 24 divisors (see below), whose sum is σ = 36523888128. Its totient is φ = 9890658720.

The previous prime is 20323665337. The next prime is 20323665371. The reversal of 20323665364 is 46356632302.

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 7 ways as a sum of consecutive naturals, for example, 264604 + ... + 332659.

It is an arithmetic number, because the mean of its divisors is an integer number (1521828672).

Almost surely, 2^20323665364 is an apocalyptic number.

It is an amenable number.

20323665364 is a deficient number, since it is larger than the sum of its proper divisors (16200222764).

20323665364 is a wasteful number, since it uses less digits than its factorization.

20323665364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597495 (or 597493 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 40.

The spelling of 20323665364 in words is "twenty billion, three hundred twenty-three million, six hundred sixty-five thousand, three hundred sixty-four".