1065565156 has 12 divisors (see below), whose sum is σ = 1877255100. Its totient is φ = 529206560.

The previous prime is 1065565147. The next prime is 1065565157. The reversal of 1065565156 is 6515655601.

It can be written as a sum of positive squares in 2 ways, for example, as 263542756 + 802022400 = 16234^2 + 28320^2 .

It is a super-2 number, since 2×1065565156² = 2270858203362608672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065565157) 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, 893335 + ... + 894526.

It is an arithmetic number, because the mean of its divisors is an integer number (156437925).

Almost surely, 2^1065565156 is an apocalyptic number.

It is an amenable number.

1065565156 is a deficient number, since it is larger than the sum of its proper divisors (811689944).

1065565156 is a wasteful number, since it uses less digits than its factorization.

1065565156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788014 (or 1788012 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 1065565156 is about 32642.9955120543. The cubic root of 1065565156 is about 1021.3940812173.

The spelling of 1065565156 in words is "one billion, sixty-five million, five hundred sixty-five thousand, one hundred fifty-six".