20436632223 has 24 divisors (see below), whose sum is σ = 32234895360. Its totient is φ = 11480137200.

The previous prime is 20436632201. The next prime is 20436632243. The reversal of 20436632223 is 32223663402.

It is not a de Polignac number, because 20436632223 - 2⁵ = 20436632191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436632243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1169503 + ... + 1186848.

It is an arithmetic number, because the mean of its divisors is an integer number (1343120640).

Almost surely, 2^20436632223 is an apocalyptic number.

20436632223 is a deficient number, since it is larger than the sum of its proper divisors (11798263137).

20436632223 is a wasteful number, since it uses less digits than its factorization.

20436632223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356427 (or 2356420 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

The spelling of 20436632223 in words is "twenty billion, four hundred thirty-six million, six hundred thirty-two thousand, two hundred twenty-three".