61100060550 has 24 divisors (see below), whose sum is σ = 151528150536. Its totient is φ = 16293349440.

The previous prime is 61100060479. The next prime is 61100060551. The reversal of 61100060550 is 5506000116.

It is a self number, because there is not a number n which added to its sum of digits gives 61100060550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61100060551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203666719 + ... + 203667018.

It is an arithmetic number, because the mean of its divisors is an integer number (6313672939).

Almost surely, 2^61100060550 is an apocalyptic number.

61100060550 is an abundant number, since it is smaller than the sum of its proper divisors (90428089986).

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

61100060550 is a wasteful number, since it uses less digits than its factorization.

61100060550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407333752 (or 407333747 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 61100060550 its reverse (5506000116), we get a palindrome (66606060666).

The spelling of 61100060550 in words is "sixty-one billion, one hundred million, sixty thousand, five hundred fifty".