665164246 has 8 divisors (see below), whose sum is σ = 1001921760. Its totient is φ = 331190328.

The previous prime is 665164231. The next prime is 665164259. The reversal of 665164246 is 642461566.

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

It is a junction number, because it is equal to n+sod(n) for n = 665164199 and 665164208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695301 + ... + 696256.

It is an arithmetic number, because the mean of its divisors is an integer number (125240220).

Almost surely, 2^665164246 is an apocalyptic number.

665164246 is a deficient number, since it is larger than the sum of its proper divisors (336757514).

665164246 is a wasteful number, since it uses less digits than its factorization.

665164246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391798.

The product of its digits is 207360, while the sum is 40.

The square root of 665164246 is about 25790.7783131878. The cubic root of 665164246 is about 872.9237284698.

The spelling of 665164246 in words is "six hundred sixty-five million, one hundred sixty-four thousand, two hundred forty-six".