51660112125 has 32 divisors (see below), whose sum is σ = 91019051136. Its totient is φ = 25931347200.

The previous prime is 51660112109. The next prime is 51660112129. The reversal of 51660112125 is 52121106615.

51660112125 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 51660112125 - 2⁴ = 51660112109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51660112092 and 51660112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660112129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4045399 + ... + 4058148.

It is an arithmetic number, because the mean of its divisors is an integer number (2844345348).

Almost surely, 2^51660112125 is an apocalyptic number.

It is an amenable number.

51660112125 is a deficient number, since it is larger than the sum of its proper divisors (39358939011).

51660112125 is a wasteful number, since it uses less digits than its factorization.

51660112125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103582 (or 8103572 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 51660112125 in words is "fifty-one billion, six hundred sixty million, one hundred twelve thousand, one hundred twenty-five".