66735085 has 8 divisors (see below), whose sum is σ = 82035576. Its totient is φ = 52085760.

The previous prime is 66735083. The next prime is 66735089. The reversal of 66735085 is 58053766.

It can be written as a sum of positive squares in 4 ways, for example, as 4056196 + 62678889 = 2014^2 + 7917^2 .

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

It is not a de Polignac number, because 66735085 - 2¹ = 66735083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66735083) 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, 162564 + ... + 162973.

It is an arithmetic number, because the mean of its divisors is an integer number (10254447).

Almost surely, 2^66735085 is an apocalyptic number.

It is an amenable number.

66735085 is a deficient number, since it is larger than the sum of its proper divisors (15300491).

66735085 is a wasteful number, since it uses less digits than its factorization.

66735085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325583.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 66735085 is about 8169.1544850125. The cubic root of 66735085 is about 405.6187969878.

The spelling of 66735085 in words is "sixty-six million, seven hundred thirty-five thousand, eighty-five".