51116105660055 has 16 divisors (see below), whose sum is σ = 81786107790720. Its totient is φ = 27261810107168.

The previous prime is 51116105659991. The next prime is 51116105660057. The reversal of 51116105660055 is 55006650161115.

It is a cyclic number.

It is not a de Polignac number, because 51116105660055 - 2⁶ = 51116105659991 is a prime.

It is a super-2 number, since 2×51116105660055² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51116105659989 and 51116105660016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51116105660057) 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, 3248265 + ... + 10619954.

It is an arithmetic number, because the mean of its divisors is an integer number (5111631736920).

Almost surely, 2^{51116105660055} is an apocalyptic number.

51116105660055 is a deficient number, since it is larger than the sum of its proper divisors (30670002130665).

51116105660055 is a wasteful number, since it uses less digits than its factorization.

51116105660055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113950.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 51116105660055 in words is "fifty-one trillion, one hundred sixteen billion, one hundred five million, six hundred sixty thousand, fifty-five".