668225148 has 24 divisors (see below), whose sum is σ = 1562677200. Its totient is φ = 222243840.

The previous prime is 668225111. The next prime is 668225149. The reversal of 668225148 is 841522866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668225149) by changing a digit.

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, 56623 + ... + 67398.

It is an arithmetic number, because the mean of its divisors is an integer number (65111550).

Almost surely, 2^668225148 is an apocalyptic number.

It is an amenable number.

668225148 is an abundant number, since it is smaller than the sum of its proper divisors (894452052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668225148 is a wasteful number, since it uses less digits than its factorization.

668225148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124477 (or 124475 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 668225148 is about 25850.0512185179. The cubic root of 668225148 is about 874.2606643958.

The spelling of 668225148 in words is "six hundred sixty-eight million, two hundred twenty-five thousand, one hundred forty-eight".