1006662565 has 16 divisors (see below), whose sum is σ = 1300028400. Its totient is φ = 745528320.

The previous prime is 1006662563. The next prime is 1006662577. The reversal of 1006662565 is 5652666001.

1006662565 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 318229921 + 688432644 = 17839^2 + 26238^2 .

It is not a de Polignac number, because 1006662565 - 2¹ = 1006662563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006662563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 91890 + ... + 102259.

It is an arithmetic number, because the mean of its divisors is an integer number (81251775).

Almost surely, 2^1006662565 is an apocalyptic number.

It is an amenable number.

1006662565 is a deficient number, since it is larger than the sum of its proper divisors (293365835).

1006662565 is a wasteful number, since it uses less digits than its factorization.

1006662565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194232.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1006662565 is about 31727.9461201005. The cubic root of 1006662565 is about 1002.2159409785.

The spelling of 1006662565 in words is "one billion, six million, six hundred sixty-two thousand, five hundred sixty-five".