20005432132 has 24 divisors (see below), whose sum is σ = 40131761600. Its totient is φ = 8547850080.

The previous prime is 20005432121. The next prime is 20005432141. The reversal of 20005432132 is 23123450002.

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, 1070007 + ... + 1088542.

Almost surely, 2^20005432132 is an apocalyptic number.

It is an amenable number.

20005432132 is an abundant number, since it is smaller than the sum of its proper divisors (20126329468).

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

20005432132 is a wasteful number, since it uses less digits than its factorization.

20005432132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158891 (or 2158889 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20005432132 its reverse (23123450002), we get a palindrome (43128882134).

The spelling of 20005432132 in words is "twenty billion, five million, four hundred thirty-two thousand, one hundred thirty-two".