66016116 has 18 divisors (see below), whose sum is σ = 166874162. Its totient is φ = 22005360.

The previous prime is 66016087. The next prime is 66016129. The reversal of 66016116 is 61161066.

It can be written as a sum of positive squares in only one way, i.e., 52620516 + 13395600 = 7254^2 + 3660^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 66016116.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 916855 + ... + 916926.

Almost surely, 2^66016116 is an apocalyptic number.

It is an amenable number.

66016116 is an abundant number, since it is smaller than the sum of its proper divisors (100858046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66016116 is a wasteful number, since it uses less digits than its factorization.

66016116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833791 (or 1833786 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 66016116 is about 8125.0302153284. The cubic root of 66016116 is about 404.1568926298.

The spelling of 66016116 in words is "sixty-six million, sixteen thousand, one hundred sixteen".