32143216140 has 288 divisors, whose sum is σ = 121792978944. Its totient is φ = 6691645440.

The previous prime is 32143216111. The next prime is 32143216141. The reversal of 32143216140 is 4161234123.

It is a happy number.

32143216140 is a `hidden beast` number, since 3 + 2 + 1 + 43 + 2 + 1 + 614 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (32143216141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 639817 + ... + 688223.

It is an arithmetic number, because the mean of its divisors is an integer number (422892288).

Almost surely, 2^32143216140 is an apocalyptic number.

32143216140 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 32143216140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60896489472).

32143216140 is an abundant number, since it is smaller than the sum of its proper divisors (89649762804).

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

32143216140 is a wasteful number, since it uses less digits than its factorization.

32143216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48477 (or 48472 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 32143216140 in words is "thirty-two billion, one hundred forty-three million, two hundred sixteen thousand, one hundred forty".