51665524773801 has 16 divisors (see below), whose sum is σ = 68987868505920. Its totient is φ = 34393435294400.

The previous prime is 51665524773767. The next prime is 51665524773833. The reversal of 51665524773801 is 10837742556615.

51665524773801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51665524773801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51665524773871) 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, 67362610 + ... + 68125268.

It is an arithmetic number, because the mean of its divisors is an integer number (4311741781620).

Almost surely, 2^{51665524773801} is an apocalyptic number.

It is an amenable number.

51665524773801 is a deficient number, since it is larger than the sum of its proper divisors (17322343732119).

51665524773801 is a wasteful number, since it uses less digits than its factorization.

51665524773801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795576.

The product of its (nonzero) digits is 42336000, while the sum is 60.

The spelling of 51665524773801 in words is "fifty-one trillion, six hundred sixty-five billion, five hundred twenty-four million, seven hundred seventy-three thousand, eight hundred one".