20223654664 has 16 divisors (see below), whose sum is σ = 38485314000. Its totient is φ = 9960904272.

The previous prime is 20223654653. The next prime is 20223654673. The reversal of 20223654664 is 46645632202.

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, 18864814 + ... + 18865885.

It is an arithmetic number, because the mean of its divisors is an integer number (2405332125).

Almost surely, 2^20223654664 is an apocalyptic number.

It is an amenable number.

20223654664 is a deficient number, since it is larger than the sum of its proper divisors (18261659336).

20223654664 is a wasteful number, since it uses less digits than its factorization.

20223654664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37730772 (or 37730768 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 20223654664 in words is "twenty billion, two hundred twenty-three million, six hundred fifty-four thousand, six hundred sixty-four".