1065561432 has 32 divisors (see below), whose sum is σ = 2868820080. Its totient is φ = 327864960.

The previous prime is 1065561391. The next prime is 1065561451. The reversal of 1065561432 is 2341655601.

It is a super-2 number, since 2×1065561432² = 2270842330731781248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065561393 and 1065561402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707319 + ... + 1707942.

Almost surely, 2^1065561432 is an apocalyptic number.

1065561432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1065561432 is an abundant number, since it is smaller than the sum of its proper divisors (1803258648).

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

1065561432 is a wasteful number, since it uses less digits than its factorization.

1065561432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415283 (or 3415279 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1065561432 is about 32642.9384706708. The cubic root of 1065561432 is about 1021.3928913399.

The spelling of 1065561432 in words is "one billion, sixty-five million, five hundred sixty-one thousand, four hundred thirty-two".