1065598128 has 120 divisors (see below), whose sum is σ = 3587667200. Its totient is φ = 288427392.

The previous prime is 1065598111. The next prime is 1065598133. The reversal of 1065598128 is 8218955601.

It is a happy number.

1065598128 is a `hidden beast` number, since 10 + 6 + 559 + 81 + 2 + 8 = 666.

It is a super-2 number, since 2×1065598128² = 2270998740794208768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8668 + ... + 46971.

Almost surely, 2^1065598128 is an apocalyptic number.

1065598128 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 1065598128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793833600).

1065598128 is an abundant number, since it is smaller than the sum of its proper divisors (2522069072).

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

1065598128 is a wasteful number, since it uses less digits than its factorization.

1065598128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55679 (or 55670 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The square root of 1065598128 is about 32643.5005475822. The cubic root of 1065598128 is about 1021.4046161772.

The spelling of 1065598128 in words is "one billion, sixty-five million, five hundred ninety-eight thousand, one hundred twenty-eight".