20641403232 has 48 divisors (see below), whose sum is σ = 60204095280. Its totient is φ = 6880467456.

The previous prime is 20641403201. The next prime is 20641403243. The reversal of 20641403232 is 23230414602.

20641403232 is a `hidden beast` number, since 20 + 6 + 4 + 1 + 403 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20641403196 and 20641403205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11944393 + ... + 11946120.

It is an arithmetic number, because the mean of its divisors is an integer number (1254251985).

Almost surely, 2^20641403232 is an apocalyptic number.

It is an amenable number.

20641403232 is an abundant number, since it is smaller than the sum of its proper divisors (39562692048).

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

20641403232 is a wasteful number, since it uses less digits than its factorization.

20641403232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890532 (or 23890518 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20641403232 its reverse (23230414602), we get a palindrome (43871817834).

The spelling of 20641403232 in words is "twenty billion, six hundred forty-one million, four hundred three thousand, two hundred thirty-two".