668094336 has 192 divisors, whose sum is σ = 2366538720. Its totient is φ = 176173056.

The previous prime is 668094289. The next prime is 668094379. The reversal of 668094336 is 633490866.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 668094291 and 668094300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101646 + ... + 108018.

Almost surely, 2^668094336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668094336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183269360).

668094336 is an abundant number, since it is smaller than the sum of its proper divisors (1698444384).

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

668094336 is a wasteful number, since it uses less digits than its factorization.

668094336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413 (or 6398 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 668094336 is about 25847.5208869245. The cubic root of 668094336 is about 874.2036121434.

The spelling of 668094336 in words is "six hundred sixty-eight million, ninety-four thousand, three hundred thirty-six".