668754148 has 12 divisors (see below), whose sum is σ = 1174486572. Its totient is φ = 333186560.

The previous prime is 668754139. The next prime is 668754179. The reversal of 668754148 is 841457866.

668754148 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 496041984 + 172712164 = 22272^2 + 13142^2 .

It is a super-2 number, since 2×668754148² = 894464220934411808, which contains 22 as substring.

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, 296365 + ... + 298612.

It is an arithmetic number, because the mean of its divisors is an integer number (97873881).

Almost surely, 2^668754148 is an apocalyptic number.

It is an amenable number.

668754148 is a deficient number, since it is larger than the sum of its proper divisors (505732424).

668754148 is a wasteful number, since it uses less digits than its factorization.

668754148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595262 (or 595260 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 668754148 is about 25860.2812823063. The cubic root of 668754148 is about 874.4913061712.

The spelling of 668754148 in words is "six hundred sixty-eight million, seven hundred fifty-four thousand, one hundred forty-eight".