1046436665 has 4 divisors (see below), whose sum is σ = 1255724004. Its totient is φ = 837149328.

The previous prime is 1046436661. The next prime is 1046436731. The reversal of 1046436665 is 5666346401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5666346401 = 23 ⋅246362887.

It can be written as a sum of positive squares in 2 ways, for example, as 433180969 + 613255696 = 20813^2 + 24764^2 .

It is a cyclic number.

It is not a de Polignac number, because 1046436665 - 2² = 1046436661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1046436661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104643662 + ... + 104643671.

It is an arithmetic number, because the mean of its divisors is an integer number (313931001).

Almost surely, 2^1046436665 is an apocalyptic number.

It is an amenable number.

1046436665 is a deficient number, since it is larger than the sum of its proper divisors (209287339).

1046436665 is an equidigital number, since it uses as much as digits as its factorization.

1046436665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209287338.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 1046436665 is about 32348.6733112813. The cubic root of 1046436665 is about 1015.2452884171.

The spelling of 1046436665 in words is "one billion, forty-six million, four hundred thirty-six thousand, six hundred sixty-five".