66072676 has 24 divisors (see below), whose sum is σ = 125742456. Its totient is φ = 30251520.

The previous prime is 66072661. The next prime is 66072697. The reversal of 66072676 is 67627066.

It can be written as a sum of positive squares in 4 ways, for example, as 10719076 + 55353600 = 3274^2 + 7440^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10615 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (5239269).

Almost surely, 2^66072676 is an apocalyptic number.

It is an amenable number.

66072676 is a deficient number, since it is larger than the sum of its proper divisors (59669780).

66072676 is a wasteful number, since it uses less digits than its factorization.

66072676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26319 (or 26317 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 66072676 is about 8128.5100725779. The cubic root of 66072676 is about 404.2722815685.

The spelling of 66072676 in words is "sixty-six million, seventy-two thousand, six hundred seventy-six".