668000814148 has 12 divisors (see below), whose sum is σ = 1169007670012. Its totient is φ = 333998622720.

The previous prime is 668000814127. The next prime is 668000814149. The reversal of 668000814148 is 841418000866.

It can be written as a sum of positive squares in 2 ways, for example, as 624302256384 + 43698557764 = 790128^2 + 209042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 668000814098 and 668000814107.

It is not an unprimeable number, because it can be changed into a prime (668000814149) 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 3 ways as a sum of consecutive naturals, for example, 756388 + ... + 1381348.

Almost surely, 2^668000814148 is an apocalyptic number.

It is an amenable number.

668000814148 is a deficient number, since it is larger than the sum of its proper divisors (501006855864).

668000814148 is a wasteful number, since it uses less digits than its factorization.

668000814148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892182 (or 892180 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 668000814148 in words is "six hundred sixty-eight billion, eight hundred fourteen thousand, one hundred forty-eight".