20611852000 has 96 divisors (see below), whose sum is σ = 50703438240. Its totient is φ = 8234956800.

The previous prime is 20611851989. The next prime is 20611852033. The reversal of 20611852000 is 25811602.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4033447 + ... + 4038553.

It is an arithmetic number, because the mean of its divisors is an integer number (528160815).

Almost surely, 2^20611852000 is an apocalyptic number.

20611852000 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 20611852000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25351719120).

20611852000 is an abundant number, since it is smaller than the sum of its proper divisors (30091586240).

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

20611852000 is a wasteful number, since it uses less digits than its factorization.

20611852000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 20611852000 in words is "twenty billion, six hundred eleven million, eight hundred fifty-two thousand".