668026052 has 12 divisors (see below), whose sum is σ = 1176047040. Its totient is φ = 332012616.

The previous prime is 668026039. The next prime is 668026057. The reversal of 668026052 is 250620866.

668026052 is a modest number, since divided by 26052 gives 668 as remainder.

It is not an unprimeable number, because it can be changed into a prime (668026057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499352 + ... + 500687.

It is an arithmetic number, because the mean of its divisors is an integer number (98003920).

Almost surely, 2^668026052 is an apocalyptic number.

It is an amenable number.

668026052 is a deficient number, since it is larger than the sum of its proper divisors (508020988).

668026052 is a wasteful number, since it uses less digits than its factorization.

668026052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000210 (or 1000208 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 668026052 is about 25846.1999527977. The cubic root of 668026052 is about 874.1738278499.

The spelling of 668026052 in words is "six hundred sixty-eight million, twenty-six thousand, fifty-two".