20943632160 has 480 divisors, whose sum is σ = 81445839552. Its totient is φ = 5026129920.

The previous prime is 20943632141. The next prime is 20943632173. The reversal of 20943632160 is 6123634902.

20943632160 is a `hidden beast` number, since 2 + 0 + 9 + 4 + 3 + 632 + 16 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15253234 + ... + 15254606.

Almost surely, 2^20943632160 is an apocalyptic number.

20943632160 is a gapful number since it is divisible by the number (20) 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 20943632160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40722919776).

20943632160 is an abundant number, since it is smaller than the sum of its proper divisors (60502207392).

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

20943632160 is a wasteful number, since it uses less digits than its factorization.

20943632160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 20943632160 in words is "twenty billion, nine hundred forty-three million, six hundred thirty-two thousand, one hundred sixty".