51611605010655 has 16 divisors (see below), whose sum is σ = 82770165633024. Its totient is φ = 27462323467040.

The previous prime is 51611605010611. The next prime is 51611605010659. The reversal of 51611605010655 is 55601050611615.

51611605010655 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 51611605010655 - 2¹⁰ = 51611605009631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51611605010659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3991610319 + ... + 3991623248.

It is an arithmetic number, because the mean of its divisors is an integer number (5173135352064).

Almost surely, 2^{51611605010655} is an apocalyptic number.

51611605010655 is a deficient number, since it is larger than the sum of its proper divisors (31158560622369).

51611605010655 is a wasteful number, since it uses less digits than its factorization.

51611605010655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983234006.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 51611605010655 in words is "fifty-one trillion, six hundred eleven billion, six hundred five million, ten thousand, six hundred fifty-five".