51605056006111 has 8 divisors (see below), whose sum is σ = 54383051296880. Its totient is φ = 48833254686528.

The previous prime is 51605056006087. The next prime is 51605056006193. The reversal of 51605056006111 is 11160065050615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51605056006111 - 2⁵ = 51605056006079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51605056006411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548475686 + ... + 1548509011.

It is an arithmetic number, because the mean of its divisors is an integer number (6797881412110).

Almost surely, 2^{51605056006111} is an apocalyptic number.

51605056006111 is a deficient number, since it is larger than the sum of its proper divisors (2777995290769).

51605056006111 is a wasteful number, since it uses less digits than its factorization.

51605056006111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096985593.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 51605056006111 in words is "fifty-one trillion, six hundred five billion, fifty-six million, six thousand, one hundred eleven".