66086503 has 8 divisors (see below), whose sum is σ = 79502720. Its totient is φ = 53664120.

The previous prime is 66086491. The next prime is 66086533. The reversal of 66086503 is 30568066.

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 66086503 - 2¹⁷ = 65955431 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66086533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248313 + ... + 248578.

It is an arithmetic number, because the mean of its divisors is an integer number (9937840).

Almost surely, 2^66086503 is an apocalyptic number.

66086503 is a deficient number, since it is larger than the sum of its proper divisors (13416217).

66086503 is a wasteful number, since it uses less digits than its factorization.

66086503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496917.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 66086503 is about 8129.3605529586. The cubic root of 66086503 is about 404.3004802294.

The spelling of 66086503 in words is "sixty-six million, eighty-six thousand, five hundred three".