51724473062166 has 48 divisors (see below), whose sum is σ = 112388593596864. Its totient is φ = 17192440501632.

The previous prime is 51724473062147. The next prime is 51724473062173. The reversal of 51724473062166 is 66126037442715.

51724473062166 is a `hidden beast` number, since 5 + 1 + 7 + 2 + 4 + 4 + 7 + 3 + 0 + 621 + 6 + 6 = 666.

It is a super-2 number, since 2×51724473062166² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54871116 + ... + 55805808.

It is an arithmetic number, because the mean of its divisors is an integer number (2341429033268).

Almost surely, 2^{51724473062166} is an apocalyptic number.

51724473062166 is an abundant number, since it is smaller than the sum of its proper divisors (60664120534698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51724473062166 is a wasteful number, since it uses less digits than its factorization.

51724473062166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943445 (or 943442 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 51724473062166 in words is "fifty-one trillion, seven hundred twenty-four billion, four hundred seventy-three million, sixty-two thousand, one hundred sixty-six".