32131665016 has 64 divisors (see below), whose sum is σ = 69960672000. Its totient is φ = 13681071360.

The previous prime is 32131664987. The next prime is 32131665017. The reversal of 32131665016 is 61056613123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131665017) 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 15 ways as a sum of consecutive naturals, for example, 40845 + ... + 256771.

It is an arithmetic number, because the mean of its divisors is an integer number (1093135500).

Almost surely, 2^32131665016 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 32131665016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34980336000).

32131665016 is an abundant number, since it is smaller than the sum of its proper divisors (37829006984).

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

32131665016 is a wasteful number, since it uses less digits than its factorization.

32131665016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216052 (or 216048 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 32131665016 in words is "thirty-two billion, one hundred thirty-one million, six hundred sixty-five thousand, sixteen".