51660655055 has 16 divisors (see below), whose sum is σ = 65329740000. Its totient is φ = 39108833280.

The previous prime is 51660655049. The next prime is 51660655099. The reversal of 51660655055 is 55055606615.

51660655055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51660655055 - 2¹⁴ = 51660638671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51660654997 and 51660655015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224930 + ... + 392319.

It is an arithmetic number, because the mean of its divisors is an integer number (4083108750).

Almost surely, 2^51660655055 is an apocalyptic number.

51660655055 is a deficient number, since it is larger than the sum of its proper divisors (13669084945).

51660655055 is a wasteful number, since it uses less digits than its factorization.

51660655055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618154.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 51660655055 in words is "fifty-one billion, six hundred sixty million, six hundred fifty-five thousand, fifty-five".