51055536660 has 48 divisors (see below), whose sum is σ = 142979256000. Its totient is φ = 13612547584.

The previous prime is 51055536617. The next prime is 51055536673. The reversal of 51055536660 is 6663555015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310396 + ... + 445484.

It is an arithmetic number, because the mean of its divisors is an integer number (2978734500).

Almost surely, 2^51055536660 is an apocalyptic number.

It is an amenable number.

51055536660 is an abundant number, since it is smaller than the sum of its proper divisors (91923719340).

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

51055536660 is a wasteful number, since it uses less digits than its factorization.

51055536660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141400 (or 141398 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 51055536660 in words is "fifty-one billion, fifty-five million, five hundred thirty-six thousand, six hundred sixty".