669544162 has 16 divisors (see below), whose sum is σ = 1149197760. Its totient is φ = 286595568.

The previous prime is 669544123. The next prime is 669544207. The reversal of 669544162 is 261445966.

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 7 ways as a sum of consecutive naturals, for example, 17337 + ... + 40492.

It is an arithmetic number, because the mean of its divisors is an integer number (71824860).

Almost surely, 2^669544162 is an apocalyptic number.

669544162 is a deficient number, since it is larger than the sum of its proper divisors (479653598).

669544162 is a wasteful number, since it uses less digits than its factorization.

669544162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58665.

The product of its digits is 311040, while the sum is 43.

The square root of 669544162 is about 25875.5514337376. The cubic root of 669544162 is about 874.8355226082.

The spelling of 669544162 in words is "six hundred sixty-nine million, five hundred forty-four thousand, one hundred sixty-two".