32143645216 has 96 divisors (see below), whose sum is σ = 69101641728. Its totient is φ = 14674682880.

The previous prime is 32143645207. The next prime is 32143645229. The reversal of 32143645216 is 61254634123.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432161 + ... + 1454431.

It is an arithmetic number, because the mean of its divisors is an integer number (719808768).

Almost surely, 2^32143645216 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 32143645216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34550820864).

32143645216 is an abundant number, since it is smaller than the sum of its proper divisors (36957996512).

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

32143645216 is a wasteful number, since it uses less digits than its factorization.

32143645216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22394 (or 22386 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The spelling of 32143645216 in words is "thirty-two billion, one hundred forty-three million, six hundred forty-five thousand, two hundred sixteen".