66304695 has 16 divisors (see below), whose sum is σ = 106647552. Its totient is φ = 35175840.

The previous prime is 66304687. The next prime is 66304697. The reversal of 66304695 is 59640366.

It is a happy number.

It is not a de Polignac number, because 66304695 - 2³ = 66304687 is a prime.

It is a super-3 number, since 3×66304695³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66304697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8707 + ... + 14436.

It is an arithmetic number, because the mean of its divisors is an integer number (6665472).

Almost surely, 2^66304695 is an apocalyptic number.

66304695 is a deficient number, since it is larger than the sum of its proper divisors (40342857).

66304695 is a wasteful number, since it uses less digits than its factorization.

66304695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 66304695 is about 8142.7694920095. The cubic root of 66304695 is about 404.7449392340.

It can be divided in two parts, 6630 and 4695, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 66304695 in words is "sixty-six million, three hundred four thousand, six hundred ninety-five".