66748606 has 8 divisors (see below), whose sum is σ = 100159920. Its totient is φ = 33361968.

The previous prime is 66748597. The next prime is 66748607. The reversal of 66748606 is 60684766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66748607) 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, 3850 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (12519990).

Almost surely, 2^66748606 is an apocalyptic number.

66748606 is a deficient number, since it is larger than the sum of its proper divisors (33411314).

66748606 is a wasteful number, since it uses less digits than its factorization.

66748606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12338.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 66748606 is about 8169.9820073241. The cubic root of 66748606 is about 405.6461888832.

The spelling of 66748606 in words is "sixty-six million, seven hundred forty-eight thousand, six hundred six".