1065065651 has 16 divisors (see below), whose sum is σ = 1178714208. Its totient is φ = 956102400.

The previous prime is 1065065633. The next prime is 1065065663. The reversal of 1065065651 is 1565605601.

It is a cyclic number.

It is not a de Polignac number, because 1065065651 - 2¹⁸ = 1064803507 is a prime.

It is a super-2 number, since 2×1065065651² = 2268729681880107602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065065671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173405 + ... + 179441.

It is an arithmetic number, because the mean of its divisors is an integer number (73669638).

Almost surely, 2^1065065651 is an apocalyptic number.

1065065651 is a deficient number, since it is larger than the sum of its proper divisors (113648557).

1065065651 is a wasteful number, since it uses less digits than its factorization.

1065065651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1065065651 is about 32635.3435863635. The cubic root of 1065065651 is about 1021.2344566309.

The spelling of 1065065651 in words is "one billion, sixty-five million, sixty-five thousand, six hundred fifty-one".