66414703 has 4 divisors (see below), whose sum is σ = 66431008. Its totient is φ = 66398400.

The previous prime is 66414637. The next prime is 66414721. The reversal of 66414703 is 30741466.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 66414703 - 2²⁵ = 32860271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66414763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3775 + ... + 12127.

It is an arithmetic number, because the mean of its divisors is an integer number (16607752).

Almost surely, 2^66414703 is an apocalyptic number.

66414703 is a deficient number, since it is larger than the sum of its proper divisors (16305).

66414703 is an equidigital number, since it uses as much as digits as its factorization.

66414703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16304.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66414703 is about 8149.5216424033. The cubic root of 66414703 is about 404.9686568235.

The spelling of 66414703 in words is "sixty-six million, four hundred fourteen thousand, seven hundred three".