61165606166 has 16 divisors (see below), whose sum is σ = 104863575456. Its totient is φ = 26211768576.

The previous prime is 61165606133. The next prime is 61165606169. The reversal of 61165606166 is 66160656116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61165606169) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19760 + ... + 350316.

It is an arithmetic number, because the mean of its divisors is an integer number (6553973466).

Almost surely, 2^61165606166 is an apocalyptic number.

61165606166 is a deficient number, since it is larger than the sum of its proper divisors (43697969290).

61165606166 is a wasteful number, since it uses less digits than its factorization.

61165606166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343783.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 61165606166 in words is "sixty-one billion, one hundred sixty-five million, six hundred six thousand, one hundred sixty-six".