61166656 has 14 divisors (see below), whose sum is σ = 121377710. Its totient is φ = 30583296.

The previous prime is 61166647. The next prime is 61166671. The reversal of 61166656 is 65666116.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 12390400 = 6984^2 + 3520^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477801 + ... + 477928.

Almost surely, 2^61166656 is an apocalyptic number.

It is an amenable number.

61166656 is a deficient number, since it is larger than the sum of its proper divisors (60211054).

61166656 is an equidigital number, since it uses as much as digits as its factorization.

61166656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955741 (or 955731 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 61166656 is about 7820.9114558343. The cubic root of 61166656 is about 394.0078846112.

The spelling of 61166656 in words is "sixty-one million, one hundred sixty-six thousand, six hundred fifty-six".