7065661072 has 10 divisors (see below), whose sum is σ = 13689718358. Its totient is φ = 3532830528.

The previous prime is 7065661039. The next prime is 7065661151. The reversal of 7065661072 is 2701665607.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4376616336 + 2689044736 = 66156^2 + 51856^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220801893 + ... + 220801924.

Almost surely, 2^7065661072 is an apocalyptic number.

It is an amenable number.

7065661072 is a deficient number, since it is larger than the sum of its proper divisors (6624057286).

7065661072 is a wasteful number, since it uses less digits than its factorization.

7065661072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441603825 (or 441603819 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 7065661072 is about 84057.4867099891. The cubic root of 7065661072 is about 1918.8937739288.

The spelling of 7065661072 in words is "seven billion, sixty-five million, six hundred sixty-one thousand, seventy-two".