220515432432 has 80 divisors (see below), whose sum is σ = 576470603520. Its totient is φ = 72628148736.

The previous prime is 220515432427. The next prime is 220515432439. The reversal of 220515432432 is 234234515022.

It is a junction number, because it is equal to n+sod(n) for n = 220515432393 and 220515432402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220515432439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6317973 + ... + 6352779.

It is an arithmetic number, because the mean of its divisors is an integer number (7205882544).

Almost surely, 2^220515432432 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 220515432432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288235301760).

220515432432 is an abundant number, since it is smaller than the sum of its proper divisors (355955171088).

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

220515432432 is a wasteful number, since it uses less digits than its factorization.

220515432432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36390 (or 36384 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 220515432432 its reverse (234234515022), we get a palindrome (454749947454).

The spelling of 220515432432 in words is "two hundred twenty billion, five hundred fifteen million, four hundred thirty-two thousand, four hundred thirty-two".