20541334432 has 12 divisors (see below), whose sum is σ = 40440752226. Its totient is φ = 10270667200.

The previous prime is 20541334423. The next prime is 20541334453. The reversal of 20541334432 is 23443314502.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13308852496 + 7232481936 = 115364^2 + 85044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20541334394 and 20541334403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320958319 + ... + 320958382.

Almost surely, 2^20541334432 is an apocalyptic number.

It is an amenable number.

20541334432 is a deficient number, since it is larger than the sum of its proper divisors (19899417794).

20541334432 is an equidigital number, since it uses as much as digits as its factorization.

20541334432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641916711 (or 641916703 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 20541334432 its reverse (23443314502), we get a palindrome (43984648934).

The spelling of 20541334432 in words is "twenty billion, five hundred forty-one million, three hundred thirty-four thousand, four hundred thirty-two".