1165528256 has 28 divisors (see below), whose sum is σ = 2313934920. Its totient is φ = 582489600.

The previous prime is 1165528253. The next prime is 1165528271. The reversal of 1165528256 is 6528255611.

It is a super-2 number, since 2×1165528256² = 2716912231068803072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1165528253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244100 + ... + 248828.

Almost surely, 2^1165528256 is an apocalyptic number.

1165528256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1165528256 is a deficient number, since it is larger than the sum of its proper divisors (1148406664).

1165528256 is an equidigital number, since it uses as much as digits as its factorization.

1165528256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592 (or 8582 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 1165528256 is about 34139.8338601699. The cubic root of 1165528256 is about 1052.3840781223.

The spelling of 1165528256 in words is "one billion, one hundred sixty-five million, five hundred twenty-eight thousand, two hundred fifty-six".