1065561112 has 64 divisors (see below), whose sum is σ = 2599257600. Its totient is φ = 397098240.

The previous prime is 1065561103. The next prime is 1065561121. The reversal of 1065561112 is 2111655601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1065561103) and next prime (1065561121).

It is a super-2 number, since 2×1065561112² = 2270840966813353088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23437 + ... + 51772.

It is an arithmetic number, because the mean of its divisors is an integer number (40613400).

Almost surely, 2^1065561112 is an apocalyptic number.

It is an amenable number.

1065561112 is an abundant number, since it is smaller than the sum of its proper divisors (1533696488).

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

1065561112 is a wasteful number, since it uses less digits than its factorization.

1065561112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75256 (or 75252 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1065561112 is about 32642.9335691509. The cubic root of 1065561112 is about 1021.3927890946.

The spelling of 1065561112 in words is "one billion, sixty-five million, five hundred sixty-one thousand, one hundred twelve".