665076434 has 16 divisors (see below), whose sum is σ = 1090907136. Its totient is φ = 301585200.

The previous prime is 665076359. The next prime is 665076439. The reversal of 665076434 is 434670566.

It is a junction number, because it is equal to n+sod(n) for n = 665076391 and 665076400.

It is not an unprimeable number, because it can be changed into a prime (665076439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26642 + ... + 45165.

It is an arithmetic number, because the mean of its divisors is an integer number (68181696).

Almost surely, 2^665076434 is an apocalyptic number.

665076434 is a deficient number, since it is larger than the sum of its proper divisors (425830702).

665076434 is a wasteful number, since it uses less digits than its factorization.

665076434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72241.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 665076434 is about 25789.0758655676. The cubic root of 665076434 is about 872.8853136210.

The spelling of 665076434 in words is "six hundred sixty-five million, seventy-six thousand, four hundred thirty-four".