665697010 has 16 divisors (see below), whose sum is σ = 1307187072. Its totient is φ = 242071600.

The previous prime is 665696963. The next prime is 665697023. The reversal of 665697010 is 10796566.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3025786 + ... + 3026005.

It is an arithmetic number, because the mean of its divisors is an integer number (81699192).

Almost surely, 2^665697010 is an apocalyptic number.

665697010 is a deficient number, since it is larger than the sum of its proper divisors (641490062).

665697010 is a wasteful number, since it uses less digits than its factorization.

665697010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051809.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 665697010 is about 25801.1048213056. The cubic root of 665697010 is about 873.1567226669.

The spelling of 665697010 in words is "six hundred sixty-five million, six hundred ninety-seven thousand, ten".