61055600556 has 48 divisors (see below), whose sum is σ = 144582762240. Its totient is φ = 20049503040.

The previous prime is 61055600513. The next prime is 61055600603. The reversal of 61055600556 is 65500655016.

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, 1086150 + ... + 1140978.

It is an arithmetic number, because the mean of its divisors is an integer number (3012140880).

Almost surely, 2^61055600556 is an apocalyptic number.

It is an amenable number.

61055600556 is an abundant number, since it is smaller than the sum of its proper divisors (83527161684).

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

61055600556 is a wasteful number, since it uses less digits than its factorization.

61055600556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56214 (or 56212 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 61055600556 in words is "sixty-one billion, fifty-five million, six hundred thousand, five hundred fifty-six".