20500710552 has 240 divisors, whose sum is σ = 67095947160. Its totient is φ = 5855141376.

The previous prime is 20500710547. The next prime is 20500710617. The reversal of 20500710552 is 25501700502.

It is a happy number.

20500710552 is a `hidden beast` number, since 2 + 0 + 500 + 7 + 105 + 52 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 7714408 + ... + 7717064.

Almost surely, 2^20500710552 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 20500710552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33547973580).

20500710552 is an abundant number, since it is smaller than the sum of its proper divisors (46595236608).

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

20500710552 is an frugal number, since it uses more digits than its factorization.

20500710552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The spelling of 20500710552 in words is "twenty billion, five hundred million, seven hundred ten thousand, five hundred fifty-two".