10061665 has 4 divisors (see below), whose sum is σ = 12074004. Its totient is φ = 8049328.

The previous prime is 10061647. The next prime is 10061719. The reversal of 10061665 is 56616001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3594816 + 6466849 = 1896^2 + 2543^2 .

It is a cyclic number.

It is not a de Polignac number, because 10061665 - 2⁹ = 10061153 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006162 + ... + 1006171.

It is an arithmetic number, because the mean of its divisors is an integer number (3018501).

Almost surely, 2^10061665 is an apocalyptic number.

It is an amenable number.

10061665 is a deficient number, since it is larger than the sum of its proper divisors (2012339).

10061665 is an equidigital number, since it uses as much as digits as its factorization.

10061665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012338.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10061665 is about 3172.0127679440. The cubic root of 10061665 is about 215.8854058934.

Adding to 10061665 its reverse (56616001), we get a palindrome (66677666).

The spelling of 10061665 in words is "ten million, sixty-one thousand, six hundred sixty-five".