61170056112 has 40 divisors (see below), whose sum is σ = 172388341440. Its totient is φ = 18536380480.

The previous prime is 61170056093. The next prime is 61170056113. The reversal of 61170056112 is 21165007116.

It is a self number, because there is not a number n which added to its sum of digits gives 61170056112.

It is not an unprimeable number, because it can be changed into a prime (61170056113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57925662 + ... + 57926717.

It is an arithmetic number, because the mean of its divisors is an integer number (4309708536).

Almost surely, 2^61170056112 is an apocalyptic number.

It is an amenable number.

61170056112 is an abundant number, since it is smaller than the sum of its proper divisors (111218285328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61170056112 is a wasteful number, since it uses less digits than its factorization.

61170056112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115852401 (or 115852395 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 61170056112 in words is "sixty-one billion, one hundred seventy million, fifty-six thousand, one hundred twelve".