20005432433 has 8 divisors (see below), whose sum is σ = 22869279552. Its totient is φ = 17143067376.

The previous prime is 20005432423. The next prime is 20005432439. The reversal of 20005432433 is 33423450002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20005432433 - 2¹² = 20005428337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20005432439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341435 + ... + 395712.

It is an arithmetic number, because the mean of its divisors is an integer number (2858659944).

Almost surely, 2^20005432433 is an apocalyptic number.

It is an amenable number.

20005432433 is a deficient number, since it is larger than the sum of its proper divisors (2863847119).

20005432433 is an equidigital number, since it uses as much as digits as its factorization.

20005432433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741031.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 20005432433 its reverse (33423450002), we get a palindrome (53428882435).

The spelling of 20005432433 in words is "twenty billion, five million, four hundred thirty-two thousand, four hundred thirty-three".