667608503 has 8 divisors (see below), whose sum is σ = 671376672. Its totient is φ = 663850656.

The previous prime is 667608463. The next prime is 667608523. The reversal of 667608503 is 305806766.

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 667608503 - 2¹² = 667604407 is a prime.

It is a super-2 number, since 2×667608503² = 891402226555802018, which contains 22 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 (667608523) 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, 152126 + ... + 156452.

It is an arithmetic number, because the mean of its divisors is an integer number (83922084).

Almost surely, 2^667608503 is an apocalyptic number.

667608503 is a deficient number, since it is larger than the sum of its proper divisors (3768169).

667608503 is a wasteful number, since it uses less digits than its factorization.

667608503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 667608503 is about 25838.1211197718. The cubic root of 667608503 is about 873.9916560705.

The spelling of 667608503 in words is "six hundred sixty-seven million, six hundred eight thousand, five hundred three".