665620162 has 8 divisors (see below), whose sum is σ = 998767692. Its totient is φ = 332697600.

The previous prime is 665620133. The next prime is 665620171. The reversal of 665620162 is 261026566.

665620162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 529874361 + 135745801 = 23019^2 + 11651^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48639 + ... + 60802.

Almost surely, 2^665620162 is an apocalyptic number.

665620162 is a deficient number, since it is larger than the sum of its proper divisors (333147530).

665620162 is a wasteful number, since it uses less digits than its factorization.

665620162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112484.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 665620162 is about 25799.6155397711. The cubic root of 665620162 is about 873.1231223307.

The spelling of 665620162 in words is "six hundred sixty-five million, six hundred twenty thousand, one hundred sixty-two".