1065747656 has 16 divisors (see below), whose sum is σ = 1998931740. Its totient is φ = 532699200.

The previous prime is 1065747649. The next prime is 1065747671. The reversal of 1065747656 is 6567475601.

It can be written as a sum of positive squares in 2 ways, for example, as 854626756 + 211120900 = 29234^2 + 14530^2 .

It is a super-2 number, since 2×1065747656² = 2271636132538988672, 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 1065747656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230 + ... + 46586.

Almost surely, 2^1065747656 is an apocalyptic number.

It is an amenable number.

1065747656 is a deficient number, since it is larger than the sum of its proper divisors (933184084).

1065747656 is a wasteful number, since it uses less digits than its factorization.

1065747656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43664 (or 43660 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 1065747656 is about 32645.7907853371. The cubic root of 1065747656 is about 1021.4523894863.

The spelling of 1065747656 in words is "one billion, sixty-five million, seven hundred forty-seven thousand, six hundred fifty-six".