66705735 has 8 divisors (see below), whose sum is σ = 106729200. Its totient is φ = 35576384.

The previous prime is 66705703. The next prime is 66705761. The reversal of 66705735 is 53750766.

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 66705735 - 2⁵ = 66705703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66705693 and 66705702.

It is a congruent number.

It is an unprimeable number.

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, 2223510 + ... + 2223539.

It is an arithmetic number, because the mean of its divisors is an integer number (13341150).

Almost surely, 2^66705735 is an apocalyptic number.

66705735 is a deficient number, since it is larger than the sum of its proper divisors (40023465).

66705735 is a wasteful number, since it uses less digits than its factorization.

66705735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447057.

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 66705735 is about 8167.3578959171. The cubic root of 66705735 is about 405.5593247358.

The spelling of 66705735 in words is "sixty-six million, seven hundred five thousand, seven hundred thirty-five".