1085016665 has 8 divisors (see below), whose sum is σ = 1302208008. Its totient is φ = 867888000.

The previous prime is 1085016637. The next prime is 1085016707. The reversal of 1085016665 is 5666105801.

It can be written as a sum of positive squares in 4 ways, for example, as 91317136 + 993699529 = 9556^2 + 31523^2 .

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

It is not a de Polignac number, because 1085016665 - 2⁸ = 1085016409 is a prime.

It is a super-2 number, since 2×1085016665² = 2354522326655444450, which contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 41165 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (162776001).

Almost surely, 2^1085016665 is an apocalyptic number.

It is an amenable number.

1085016665 is a deficient number, since it is larger than the sum of its proper divisors (217191343).

1085016665 is a wasteful number, since it uses less digits than its factorization.

1085016665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31339.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1085016665 is about 32939.5911480395. The cubic root of 1085016665 is about 1027.5717028754.

The spelling of 1085016665 in words is "one billion, eighty-five million, sixteen thousand, six hundred sixty-five".