21032050506264 has 144 divisors (see below), whose sum is σ = 66293738690400. Its totient is φ = 6006250825344.

The previous prime is 21032050506139. The next prime is 21032050506277. The reversal of 21032050506264 is 46260505023012.

21032050506264 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 20 + 5 + 0 + 5 + 0 + 626 + 4 = 666.

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, 5858769 + ... + 8740095.

It is an arithmetic number, because the mean of its divisors is an integer number (460373185350).

Almost surely, 2^{21032050506264} is an apocalyptic number.

21032050506264 is a gapful number since it is divisible by the number (24) 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 21032050506264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33146869345200).

21032050506264 is an abundant number, since it is smaller than the sum of its proper divisors (45261688184136).

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

21032050506264 is a wasteful number, since it uses less digits than its factorization.

21032050506264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883422 (or 2883408 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 21032050506264 its reverse (46260505023012), we get a palindrome (67292555529276).

The spelling of 21032050506264 in words is "twenty-one trillion, thirty-two billion, fifty million, five hundred six thousand, two hundred sixty-four".