20411433432 has 128 divisors (see below), whose sum is σ = 61184088000. Its totient is φ = 6267663360.

The previous prime is 20411433403. The next prime is 20411433437. The reversal of 20411433432 is 23433411402.

20411433432 is a `hidden beast` number, since 204 + 114 + 3 + 343 + 2 = 666.

It is a super-2 number, since 2×20411433432² (a number of 21 digits) contains 22 as substring.

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 = 20411433396 and 20411433405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411433437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1422132 + ... + 1436412.

Almost surely, 2^20411433432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20411433432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30592044000).

20411433432 is an abundant number, since it is smaller than the sum of its proper divisors (40772654568).

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

20411433432 is a wasteful number, since it uses less digits than its factorization.

20411433432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818 (or 14808 counting only the distinct ones).

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

Adding to 20411433432 its reverse (23433411402), we get a palindrome (43844844834).

The spelling of 20411433432 in words is "twenty billion, four hundred eleven million, four hundred thirty-three thousand, four hundred thirty-two".