61100550105 has 16 divisors (see below), whose sum is σ = 111726720384. Its totient is φ = 27931680000.

The previous prime is 61100550059. The next prime is 61100550131. The reversal of 61100550105 is 50105500116.

It is not a de Polignac number, because 61100550105 - 2⁷ = 61100549977 is a prime.

It is a super-2 number, since 2×61100550105² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 290954896 + ... + 290955105.

It is an arithmetic number, because the mean of its divisors is an integer number (6982920024).

Almost surely, 2^61100550105 is an apocalyptic number.

It is an amenable number.

61100550105 is a deficient number, since it is larger than the sum of its proper divisors (50626170279).

61100550105 is a wasteful number, since it uses less digits than its factorization.

61100550105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581910016.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 61100550105 in words is "sixty-one billion, one hundred million, five hundred fifty thousand, one hundred five".