20755001112 has 128 divisors (see below), whose sum is σ = 54388032000. Its totient is φ = 6593799168.

The previous prime is 20755001093. The next prime is 20755001117. The reversal of 20755001112 is 21110055702.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20755001117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11838828 + ... + 11840580.

It is an arithmetic number, because the mean of its divisors is an integer number (424906500).

Almost surely, 2^20755001112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20755001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27194016000).

20755001112 is an abundant number, since it is smaller than the sum of its proper divisors (33633030888).

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

20755001112 is a wasteful number, since it uses less digits than its factorization.

20755001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065 (or 2061 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

Adding to 20755001112 its reverse (21110055702), we get a palindrome (41865056814).

The spelling of 20755001112 in words is "twenty billion, seven hundred fifty-five million, one thousand, one hundred twelve".