20535334110 has 128 divisors (see below), whose sum is σ = 59549696640. Its totient is φ = 5014628352.

The previous prime is 20535334109. The next prime is 20535334111. The reversal of 20535334110 is 1143353502.

It is an interprime number because it is at equal distance from previous prime (20535334109) and next prime (20535334111).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535334111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109372 + ... + 230288.

It is an arithmetic number, because the mean of its divisors is an integer number (465232005).

Almost surely, 2^20535334110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20535334110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29774848320).

20535334110 is an abundant number, since it is smaller than the sum of its proper divisors (39014362530).

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

20535334110 is a wasteful number, since it uses less digits than its factorization.

20535334110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120987 (or 120981 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 20535334110 its reverse (1143353502), we get a palindrome (21678687612).

The spelling of 20535334110 in words is "twenty billion, five hundred thirty-five million, three hundred thirty-four thousand, one hundred ten".