32020345500 has 288 divisors, whose sum is σ = 110155997952. Its totient is φ = 7164768000.

The previous prime is 32020345481. The next prime is 32020345519. The reversal of 32020345500 is 554302023.

It is an interprime number because it is at equal distance from previous prime (32020345481) and next prime (32020345519).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2782759 + ... + 2794241.

It is an arithmetic number, because the mean of its divisors is an integer number (382486104).

Almost surely, 2^32020345500 is an apocalyptic number.

32020345500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32020345500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55077998976).

32020345500 is an abundant number, since it is smaller than the sum of its proper divisors (78135652452).

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

32020345500 is a wasteful number, since it uses less digits than its factorization.

32020345500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11542 (or 11517 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 32020345500 its reverse (554302023), we get a palindrome (32574647523).

The spelling of 32020345500 in words is "thirty-two billion, twenty million, three hundred forty-five thousand, five hundred".