61106055005 has 12 divisors (see below), whose sum is σ = 75942988212. Its totient is φ = 47199156480.

The previous prime is 61106055001. The next prime is 61106055041. The reversal of 61106055005 is 50055060116.

It can be written as a sum of positive squares in 6 ways, for example, as 9781605604 + 51324449401 = 98902^2 + 226549^2 .

It is not a de Polignac number, because 61106055005 - 2² = 61106055001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61106055001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7261676 + ... + 7270085.

It is an arithmetic number, because the mean of its divisors is an integer number (6328582351).

Almost surely, 2^61106055005 is an apocalyptic number.

It is an amenable number.

61106055005 is a deficient number, since it is larger than the sum of its proper divisors (14836933207).

61106055005 is a wasteful number, since it uses less digits than its factorization.

61106055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14531824 (or 14531795 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 61106055005 in words is "sixty-one billion, one hundred six million, fifty-five thousand, five".