20432106534 has 96 divisors (see below), whose sum is σ = 49795637760. Its totient is φ = 5562213888.

The previous prime is 20432106521. The next prime is 20432106547. The reversal of 20432106534 is 43560123402.

It is an interprime number because it is at equal distance from previous prime (20432106521) and next prime (20432106547).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1772662 + ... + 1784150.

It is an arithmetic number, because the mean of its divisors is an integer number (518704560).

Almost surely, 2^20432106534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20432106534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24897818880).

20432106534 is an abundant number, since it is smaller than the sum of its proper divisors (29363531226).

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

20432106534 is a wasteful number, since it uses less digits than its factorization.

20432106534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11794 (or 11787 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20432106534 its reverse (43560123402), we get a palindrome (63992229936).

The spelling of 20432106534 in words is "twenty billion, four hundred thirty-two million, one hundred six thousand, five hundred thirty-four".