20223871872 has 32 divisors (see below), whose sum is σ = 53719660680. Its totient is φ = 6741290496.

The previous prime is 20223871771. The next prime is 20223871873. The reversal of 20223871872 is 27817832202.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223871873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26332783 + ... + 26333550.

Almost surely, 2^20223871872 is an apocalyptic number.

It is an amenable number.

20223871872 is an abundant number, since it is smaller than the sum of its proper divisors (33495788808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20223871872 is an equidigital number, since it uses as much as digits as its factorization.

20223871872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52666350 (or 52666338 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 20223871872 in words is "twenty billion, two hundred twenty-three million, eight hundred seventy-one thousand, eight hundred seventy-two".