32215135445200 has 120 divisors (see below), whose sum is σ = 79206261948000. Its totient is φ = 12584873172480.

The previous prime is 32215135445191. The next prime is 32215135445201. The reversal of 32215135445200 is 254453151223.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 32215135445200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32215135445201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149515146 + ... + 149730454.

It is an arithmetic number, because the mean of its divisors is an integer number (660052182900).

Almost surely, 2^{32215135445200} 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 32215135445200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39603130974000).

32215135445200 is an abundant number, since it is smaller than the sum of its proper divisors (46991126502800).

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

32215135445200 is a wasteful number, since it uses less digits than its factorization.

32215135445200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224069 (or 224058 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 32215135445200 its reverse (254453151223), we get a palindrome (32469588596423).

The spelling of 32215135445200 in words is "thirty-two trillion, two hundred fifteen billion, one hundred thirty-five million, four hundred forty-five thousand, two hundred".