66348885 has 8 divisors (see below), whose sum is σ = 106158240. Its totient is φ = 35386064.

The previous prime is 66348869. The next prime is 66348889. The reversal of 66348885 is 58884366.

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 66348885 - 2⁴ = 66348869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66348889) 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, 2211615 + ... + 2211644.

It is an arithmetic number, because the mean of its divisors is an integer number (13269780).

Almost surely, 2^66348885 is an apocalyptic number.

It is an amenable number.

66348885 is a deficient number, since it is larger than the sum of its proper divisors (39809355).

66348885 is a wasteful number, since it uses less digits than its factorization.

66348885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423267.

The product of its digits is 1105920, while the sum is 48.

The square root of 66348885 is about 8145.4824903133. The cubic root of 66348885 is about 404.8348358691.

The spelling of 66348885 in words is "sixty-six million, three hundred forty-eight thousand, eight hundred eighty-five".