66953085 has 8 divisors (see below), whose sum is σ = 107124960. Its totient is φ = 35708304.

The previous prime is 66953077. The next prime is 66953101. The reversal of 66953085 is 58035966.

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

It is not a de Polignac number, because 66953085 - 2³ = 66953077 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2231755 + ... + 2231784.

It is an arithmetic number, because the mean of its divisors is an integer number (13390620).

Almost surely, 2^66953085 is an apocalyptic number.

It is an amenable number.

66953085 is a deficient number, since it is larger than the sum of its proper divisors (40171875).

66953085 is a wasteful number, since it uses less digits than its factorization.

66953085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463547.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 66953085 is about 8182.4864802821. The cubic root of 66953085 is about 406.0599881432.

The spelling of 66953085 in words is "sixty-six million, nine hundred fifty-three thousand, eighty-five".