20017032000 has 448 divisors, whose sum is σ = 79526952960. Its totient is φ = 4333824000.

The previous prime is 20017031999. The next prime is 20017032023. The reversal of 20017032000 is 23071002.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3188865 + ... + 3195135.

It is an arithmetic number, because the mean of its divisors is an integer number (177515520).

Almost surely, 2^20017032000 is an apocalyptic number.

20017032000 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 20017032000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39763476480).

20017032000 is an abundant number, since it is smaller than the sum of its proper divisors (59509920960).

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

20017032000 is a wasteful number, since it uses less digits than its factorization.

20017032000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The spelling of 20017032000 in words is "twenty billion, seventeen million, thirty-two thousand".