20533110000 has 800 divisors, whose sum is σ = 80047376640. Its totient is φ = 4478976000.

The previous prime is 20533109977. The next prime is 20533110029. The reversal of 20533110000 is 1133502.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 125969919 + ... + 125970081.

Almost surely, 2^20533110000 is an apocalyptic number.

20533110000 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 20533110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40023688320).

20533110000 is an abundant number, since it is smaller than the sum of its proper divisors (59514266640).

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

20533110000 is a wasteful number, since it uses less digits than its factorization.

20533110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 20533110000 its reverse (1133502), we get a palindrome (20534243502).

The spelling of 20533110000 in words is "twenty billion, five hundred thirty-three million, one hundred ten thousand".