565115137020 has 288 divisors, whose sum is σ = 2046210788160. Its totient is φ = 129103994880.

The previous prime is 565115137003. The next prime is 565115137021. The reversal of 565115137020 is 20731511565.

It is a happy number.

565115137020 is a `hidden beast` number, since 5 + 6 + 51 + 1 + 513 + 70 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565115137021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69241740 + ... + 69249900.

It is an arithmetic number, because the mean of its divisors is an integer number (7104898570).

Almost surely, 2^565115137020 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 565115137020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023105394080).

565115137020 is an abundant number, since it is smaller than the sum of its proper divisors (1481095651140).

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

565115137020 is a wasteful number, since it uses less digits than its factorization.

565115137020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810 (or 10795 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

Adding to 565115137020 its reverse (20731511565), we get a palindrome (585846648585).

The spelling of 565115137020 in words is "five hundred sixty-five billion, one hundred fifteen million, one hundred thirty-seven thousand, twenty".