668454010 has 32 divisors (see below), whose sum is σ = 1447482240. Its totient is φ = 217121472.

The previous prime is 668453999. The next prime is 668454053. The reversal of 668454010 is 10454866.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 249969 + ... + 252628.

It is an arithmetic number, because the mean of its divisors is an integer number (45233820).

Almost surely, 2^668454010 is an apocalyptic number.

668454010 is an abundant number, since it is smaller than the sum of its proper divisors (779028230).

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

668454010 is a wasteful number, since it uses less digits than its factorization.

668454010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502630.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 668454010 is about 25854.4775619234. The cubic root of 668454010 is about 874.3604621993.

The spelling of 668454010 in words is "six hundred sixty-eight million, four hundred fifty-four thousand, ten".