61166216 has 16 divisors (see below), whose sum is σ = 116303040. Its totient is φ = 30152080.

The previous prime is 61166213. The next prime is 61166297. The reversal of 61166216 is 61266116.

It is not an unprimeable number, because it can be changed into a prime (61166213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53276 + ... + 54411.

It is an arithmetic number, because the mean of its divisors is an integer number (7268940).

Almost surely, 2^61166216 is an apocalyptic number.

It is an amenable number.

61166216 is a deficient number, since it is larger than the sum of its proper divisors (55136824).

61166216 is a wasteful number, since it uses less digits than its factorization.

61166216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107764 (or 107760 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 61166216 is about 7820.8833260700. The cubic root of 61166216 is about 394.0069398487.

The spelling of 61166216 in words is "sixty-one million, one hundred sixty-six thousand, two hundred sixteen".