20885888432 has 10 divisors (see below), whose sum is σ = 40466408868. Its totient is φ = 10442944208.

The previous prime is 20885888381. The next prime is 20885888449. The reversal of 20885888432 is 23488858802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652683998 + ... + 652684029.

Almost surely, 2^20885888432 is an apocalyptic number.

It is an amenable number.

20885888432 is a deficient number, since it is larger than the sum of its proper divisors (19580520436).

20885888432 is a wasteful number, since it uses less digits than its factorization.

20885888432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305368035 (or 1305368029 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 56.

The spelling of 20885888432 in words is "twenty billion, eight hundred eighty-five million, eight hundred eighty-eight thousand, four hundred thirty-two".