66096685 has 4 divisors (see below), whose sum is σ = 79316028. Its totient is φ = 52877344.

The previous prime is 66096661. The next prime is 66096691. The reversal of 66096685 is 58669066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35593156 + 30503529 = 5966^2 + 5523^2 .

It is a cyclic number.

It is not a de Polignac number, because 66096685 - 2¹³ = 66088493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6609664 + ... + 6609673.

It is an arithmetic number, because the mean of its divisors is an integer number (19829007).

Almost surely, 2^66096685 is an apocalyptic number.

It is an amenable number.

66096685 is a deficient number, since it is larger than the sum of its proper divisors (13219343).

66096685 is a wasteful number, since it uses less digits than its factorization.

66096685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13219342.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 66096685 is about 8129.9867773570. The cubic root of 66096685 is about 404.3212427952.

The spelling of 66096685 in words is "sixty-six million, ninety-six thousand, six hundred eighty-five".