665036834 has 32 divisors (see below), whose sum is σ = 1246098816. Its totient is φ = 258606720.

The previous prime is 665036809. The next prime is 665036843. The reversal of 665036834 is 438630566.

It is a junction number, because it is equal to n+sod(n) for n = 665036791 and 665036800.

It is an unprimeable number.

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, 81902 + ... + 89654.

It is an arithmetic number, because the mean of its divisors is an integer number (38940588).

Almost surely, 2^665036834 is an apocalyptic number.

665036834 is a deficient number, since it is larger than the sum of its proper divisors (581061982).

665036834 is a wasteful number, since it uses less digits than its factorization.

665036834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330.

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

The square root of 665036834 is about 25788.3080871933. The cubic root of 665036834 is about 872.8679888230.

It can be divided in two parts, 66503 and 6834, that added together give a palindrome (73337).

The spelling of 665036834 in words is "six hundred sixty-five million, thirty-six thousand, eight hundred thirty-four".