1097765568 has 112 divisors (see below), whose sum is σ = 3241365120. Its totient is φ = 364320000.

The previous prime is 1097765567. The next prime is 1097765609. The reversal of 1097765568 is 8655677901.

1097765568 is a `hidden beast` number, since 1 + 0 + 9 + 7 + 76 + 5 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1097765567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432463 + ... + 434993.

It is an arithmetic number, because the mean of its divisors is an integer number (28940760).

Almost surely, 2^1097765568 is an apocalyptic number.

1097765568 is a gapful number since it is divisible by the number (18) 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 1097765568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620682560).

1097765568 is an abundant number, since it is smaller than the sum of its proper divisors (2143599552).

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

1097765568 is a wasteful number, since it uses less digits than its factorization.

1097765568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803 (or 2787 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The square root of 1097765568 is about 33132.5454500556. The cubic root of 1097765568 is about 1031.5806841652.

It can be divided in two parts, 109 and 7765568, that added together give a palindrome (7765677).

The spelling of 1097765568 in words is "one billion, ninety-seven million, seven hundred sixty-five thousand, five hundred sixty-eight".