668300503 has 8 divisors (see below), whose sum is σ = 719909568. Its totient is φ = 616720224.

The previous prime is 668300491. The next prime is 668300513. The reversal of 668300503 is 305003866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 668300503 - 2⁹ = 668299991 is a prime.

It is a super-3 number, since 3×668300503³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668300513) 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 7 ways as a sum of consecutive naturals, for example, 82626 + ... + 90352.

It is an arithmetic number, because the mean of its divisors is an integer number (89988696).

Almost surely, 2^668300503 is an apocalyptic number.

668300503 is a deficient number, since it is larger than the sum of its proper divisors (51609065).

668300503 is a wasteful number, since it uses less digits than its factorization.

668300503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14393.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 668300503 is about 25851.5087180613. The cubic root of 668300503 is about 874.2935262919.

The spelling of 668300503 in words is "six hundred sixty-eight million, three hundred thousand, five hundred three".