32161884216 has 576 divisors, whose sum is σ = 111087728640. Its totient is φ = 7708377600.

The previous prime is 32161884187. The next prime is 32161884229. The reversal of 32161884216 is 61248816123.

It is a happy number.

It is a super-3 number, since 3×32161884216³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 101456890 + ... + 101457206.

It is an arithmetic number, because the mean of its divisors is an integer number (192860640).

Almost surely, 2^32161884216 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 32161884216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55543864320).

32161884216 is an abundant number, since it is smaller than the sum of its proper divisors (78925844424).

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

32161884216 is a wasteful number, since it uses less digits than its factorization.

32161884216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 394 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The spelling of 32161884216 in words is "thirty-two billion, one hundred sixty-one million, eight hundred eighty-four thousand, two hundred sixteen".