61050055518 has 12 divisors (see below), whose sum is σ = 132275120328. Its totient is φ = 20350018500.

The previous prime is 61050055511. The next prime is 61050055531. The reversal of 61050055518 is 81555005016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61050055511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1695834858 + ... + 1695834893.

It is an arithmetic number, because the mean of its divisors is an integer number (11022926694).

Almost surely, 2^61050055518 is an apocalyptic number.

61050055518 is an abundant number, since it is smaller than the sum of its proper divisors (71225064810).

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

61050055518 is a wasteful number, since it uses less digits than its factorization.

61050055518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391669759 (or 3391669756 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 61050055518 in words is "sixty-one billion, fifty million, fifty-five thousand, five hundred eighteen".