1048566665 has 8 divisors (see below), whose sum is σ = 1312987968. Its totient is φ = 802381360.

The previous prime is 1048566611. The next prime is 1048566689. The reversal of 1048566665 is 5666658401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1048566665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4558871 + ... + 4559100.

It is an arithmetic number, because the mean of its divisors is an integer number (164123496).

Almost surely, 2^1048566665 is an apocalyptic number.

It is an amenable number.

1048566665 is a deficient number, since it is larger than the sum of its proper divisors (264421303).

1048566665 is an equidigital number, since it uses as much as digits as its factorization.

1048566665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117999.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 1048566665 is about 32381.5790998524. The cubic root of 1048566665 is about 1015.9336584418.

The spelling of 1048566665 in words is "one billion, forty-eight million, five hundred sixty-six thousand, six hundred sixty-five".