51706580161767 has 16 divisors (see below), whose sum is σ = 69152416650240. Its totient is φ = 34365959582112.

The previous prime is 51706580161729. The next prime is 51706580161799. The reversal of 51706580161767 is 76716108560715.

It is not a de Polignac number, because 51706580161767 - 2²⁴ = 51706563384551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51706580161767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51706580161567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4236408 + ... + 11016365.

It is an arithmetic number, because the mean of its divisors is an integer number (4322026040640).

Almost surely, 2^{51706580161767} is an apocalyptic number.

51706580161767 is a deficient number, since it is larger than the sum of its proper divisors (17445836488473).

51706580161767 is a wasteful number, since it uses less digits than its factorization.

51706580161767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256222.

The product of its (nonzero) digits is 14817600, while the sum is 60.

The spelling of 51706580161767 in words is "fifty-one trillion, seven hundred six billion, five hundred eighty million, one hundred sixty-one thousand, seven hundred sixty-seven".