106664503 has 4 divisors (see below), whose sum is σ = 116361288. Its totient is φ = 96967720.

The previous prime is 106664497. The next prime is 106664531. The reversal of 106664503 is 305466601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106664503 - 2¹⁷ = 106533431 is a prime.

It is a super-3 number, since 3×106664503³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106664003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4848376 + ... + 4848397.

It is an arithmetic number, because the mean of its divisors is an integer number (29090322).

Almost surely, 2^106664503 is an apocalyptic number.

106664503 is a deficient number, since it is larger than the sum of its proper divisors (9696785).

106664503 is an equidigital number, since it uses as much as digits as its factorization.

106664503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696784.

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

The square root of 106664503 is about 10327.8508412932. The cubic root of 106664503 is about 474.2492339389.

The spelling of 106664503 in words is "one hundred six million, six hundred sixty-four thousand, five hundred three".