20001758832 has 180 divisors, whose sum is σ = 61645710672. Its totient is φ = 6049612800.

The previous prime is 20001758797. The next prime is 20001758873. The reversal of 20001758832 is 23885710002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15349893 + ... + 15351195.

Almost surely, 2^20001758832 is an apocalyptic number.

20001758832 is a gapful number since it is divisible by the number (22) 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 20001758832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30822855336).

20001758832 is an abundant number, since it is smaller than the sum of its proper divisors (41643951840).

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

20001758832 is a wasteful number, since it uses less digits than its factorization.

20001758832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2200 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 20001758832 in words is "twenty billion, one million, seven hundred fifty-eight thousand, eight hundred thirty-two".