66582703 has 4 divisors (see below), whose sum is σ = 72635688. Its totient is φ = 60529720.

The previous prime is 66582689. The next prime is 66582709. The reversal of 66582703 is 30728566.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66582703 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 (66582709) 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, 3026476 + ... + 3026497.

It is an arithmetic number, because the mean of its divisors is an integer number (18158922).

Almost surely, 2^66582703 is an apocalyptic number.

66582703 is a deficient number, since it is larger than the sum of its proper divisors (6052985).

66582703 is a wasteful number, since it uses less digits than its factorization.

66582703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052984.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 66582703 is about 8159.8224858143. The cubic root of 66582703 is about 405.3098335297.

The spelling of 66582703 in words is "sixty-six million, five hundred eighty-two thousand, seven hundred three".