61010000055 has 24 divisors (see below), whose sum is σ = 105794179920. Its totient is φ = 32525278080.

The previous prime is 61010000047. The next prime is 61010000057. The reversal of 61010000055 is 55000001016.

61010000055 is a `hidden beast` number, since 610 + 1 + 0 + 0 + 0 + 0 + 0 + 55 = 666.

It is not a de Polignac number, because 61010000055 - 2³ = 61010000047 is a prime.

It is a super-2 number, since 2×61010000055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61009999992 and 61010000037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010000057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167865 + ... + 387554.

It is an arithmetic number, because the mean of its divisors is an integer number (4408090830).

Almost surely, 2^61010000055 is an apocalyptic number.

61010000055 is a deficient number, since it is larger than the sum of its proper divisors (44784179865).

61010000055 is a wasteful number, since it uses less digits than its factorization.

61010000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557871 (or 557868 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The spelling of 61010000055 in words is "sixty-one billion, ten million, fifty-five", and thus it is an aban number and an uban number.