66622036 has 12 divisors (see below), whose sum is σ = 125557012. Its totient is φ = 30748608.

The previous prime is 66622021. The next prime is 66622057. The reversal of 66622036 is 63022666.

66622036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16353936 + 50268100 = 4044^2 + 7090^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66621989 and 66622007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640545 + ... + 640648.

Almost surely, 2^66622036 is an apocalyptic number.

It is an amenable number.

66622036 is a deficient number, since it is larger than the sum of its proper divisors (58934976).

66622036 is a wasteful number, since it uses less digits than its factorization.

66622036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281210 (or 1281208 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 66622036 is about 8162.2322927003. The cubic root of 66622036 is about 405.3896285956.

The spelling of 66622036 in words is "sixty-six million, six hundred twenty-two thousand, thirty-six".