1065344656 has 40 divisors (see below), whose sum is σ = 2135113344. Its totient is φ = 514602240.

The previous prime is 1065344653. The next prime is 1065344669. The reversal of 1065344656 is 6564435601.

It is a super-2 number, since 2×1065344656² = 2269918472135516672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065344653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59685 + ... + 75451.

Almost surely, 2^1065344656 is an apocalyptic number.

1065344656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1065344656 is an abundant number, since it is smaller than the sum of its proper divisors (1069768688).

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

1065344656 is a wasteful number, since it uses less digits than its factorization.

1065344656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15919 (or 15913 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 1065344656 is about 32639.6178899202. The cubic root of 1065344656 is about 1021.3236231666.

The spelling of 1065344656 in words is "one billion, sixty-five million, three hundred forty-four thousand, six hundred fifty-six".