660895223 has 8 divisors (see below), whose sum is σ = 663775200. Its totient is φ = 658022400.

The previous prime is 660895211. The next prime is 660895229. The reversal of 660895223 is 322598066.

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

It is a cyclic number.

It is not a de Polignac number, because 660895223 - 2⁸ = 660894967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660895229) by changing a digit.

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, 257798 + ... + 260348.

It is an arithmetic number, because the mean of its divisors is an integer number (82971900).

Almost surely, 2^660895223 is an apocalyptic number.

660895223 is a deficient number, since it is larger than the sum of its proper divisors (2879977).

660895223 is a wasteful number, since it uses less digits than its factorization.

660895223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 660895223 is about 25707.8825071222. The cubic root of 660895223 is about 871.0522446795.

The spelling of 660895223 in words is "six hundred sixty million, eight hundred ninety-five thousand, two hundred twenty-three".