32163745680 has 1200 divisors, whose sum is σ = 137931171840. Its totient is φ = 6897623040.

The previous prime is 32163745657. The next prime is 32163745681. The reversal of 32163745680 is 8654736123.

32163745680 is a `hidden beast` number, since 3 + 2 + 1 + 637 + 4 + 5 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (32163745681) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 253257777 + ... + 253257903.

Almost surely, 2^32163745680 is an apocalyptic number.

32163745680 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 32163745680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68965585920).

32163745680 is an abundant number, since it is smaller than the sum of its proper divisors (105767426160).

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

32163745680 is a wasteful number, since it uses less digits than its factorization.

32163745680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 32163745680 in words is "thirty-two billion, one hundred sixty-three million, seven hundred forty-five thousand, six hundred eighty".