61055055112 has 16 divisors (see below), whose sum is σ = 118425753900.
Its totient is φ = 29474854080.
The previous prime is 61055055097. The next prime is 61055055163. The reversal of 61055055112 is 21155055016.
It can be written as a sum of positive squares in 2 ways, for example, as 58454667076 + 2600388036 = 241774^2 + 50994^2
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131583939 + ... + 131584402.
Almost surely, 261055055112 is an apocalyptic number.
It is an amenable number.
61055055112 is a deficient number, since it is larger than the sum of its proper divisors (57370698788).
61055055112 is a wasteful number, since it uses less digits than its factorization.
61055055112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 263168376 (or 263168372 counting only the distinct ones).
The product of its (nonzero) digits is 7500, while the sum is 31.
The spelling of 61055055112 in words is "sixty-one billion, fifty-five million, fifty-five thousand, one hundred twelve".