66608941 has 8 divisors (see below), whose sum is σ = 80602560. Its totient is φ = 53734848.

The previous prime is 66608909. The next prime is 66608951. The reversal of 66608941 is 14980666.

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 66608941 - 2⁵ = 66608909 is a prime.

It is a super-2 number, since 2×66608941² = 8873502042282962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66608894 and 66608903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66608951) 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 7 ways as a sum of consecutive naturals, for example, 279751 + ... + 279988.

It is an arithmetic number, because the mean of its divisors is an integer number (10075320).

Almost surely, 2^66608941 is an apocalyptic number.

It is an amenable number.

66608941 is a deficient number, since it is larger than the sum of its proper divisors (13993619).

66608941 is a wasteful number, since it uses less digits than its factorization.

66608941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559763.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 66608941 is about 8161.4300830185. The cubic root of 66608941 is about 405.3630661879.

The spelling of 66608941 in words is "sixty-six million, six hundred eight thousand, nine hundred forty-one".