66112703 has 4 divisors (see below), whose sum is σ = 66134640. Its totient is φ = 66090768.

The previous prime is 66112699. The next prime is 66112727. The reversal of 66112703 is 30721166.

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 66112703 - 2² = 66112699 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 (66112733) 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, 5558 + ... + 12771.

It is an arithmetic number, because the mean of its divisors is an integer number (16533660).

Almost surely, 2^66112703 is an apocalyptic number.

66112703 is a deficient number, since it is larger than the sum of its proper divisors (21937).

66112703 is a wasteful number, since it uses less digits than its factorization.

66112703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21936.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 66112703 is about 8130.9718361337. The cubic root of 66112703 is about 404.3539014909.

Adding to 66112703 its reverse (30721166), we get a palindrome (96833869).

The spelling of 66112703 in words is "sixty-six million, one hundred twelve thousand, seven hundred three".