1065655340 has 12 divisors (see below), whose sum is σ = 2237876256. Its totient is φ = 426262128.

The previous prime is 1065655321. The next prime is 1065655361. The reversal of 1065655340 is 435565601.

1065655340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065655340² = 2271242607341031200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065655340.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26641364 + ... + 26641403.

It is an arithmetic number, because the mean of its divisors is an integer number (186489688).

Almost surely, 2^1065655340 is an apocalyptic number.

1065655340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065655340 is an abundant number, since it is smaller than the sum of its proper divisors (1172220916).

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

1065655340 is a wasteful number, since it uses less digits than its factorization.

1065655340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53282776 (or 53282774 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1065655340 is about 32644.3768511516. The cubic root of 1065655340 is about 1021.4228955996.

The spelling of 1065655340 in words is "one billion, sixty-five million, six hundred fifty-five thousand, three hundred forty".