61105055105 has 16 divisors (see below), whose sum is σ = 73493179200. Its totient is φ = 48772760640.

The previous prime is 61105055093. The next prime is 61105055111. The reversal of 61105055105 is 50155050116.

It is a happy number.

It is not a de Polignac number, because 61105055105 - 2⁸ = 61105054849 is a prime.

It is a super-2 number, since 2×61105055105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4456310 + ... + 4470000.

It is an arithmetic number, because the mean of its divisors is an integer number (4593323700).

Almost surely, 2^61105055105 is an apocalyptic number.

It is an amenable number.

61105055105 is a deficient number, since it is larger than the sum of its proper divisors (12388124095).

61105055105 is a wasteful number, since it uses less digits than its factorization.

61105055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15664.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 61105055105 in words is "sixty-one billion, one hundred five million, fifty-five thousand, one hundred five".