61050555500 has 48 divisors (see below), whose sum is σ = 145455736608. Its totient is φ = 22200200000.

The previous prime is 61050555493. The next prime is 61050555521. The reversal of 61050555500 is 555505016.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5544551 + ... + 5555550.

It is an arithmetic number, because the mean of its divisors is an integer number (3030327846).

Almost surely, 2^61050555500 is an apocalyptic number.

It is an amenable number.

61050555500 is an abundant number, since it is smaller than the sum of its proper divisors (84405181108).

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

61050555500 is a wasteful number, since it uses less digits than its factorization.

61050555500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100131 (or 11100119 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 61050555500 in words is "sixty-one billion, fifty million, five hundred fifty-five thousand, five hundred".