51660055566055 has 8 divisors (see below), whose sum is σ = 61992363898800. Its totient is φ = 41327846306496.

The previous prime is 51660055566011. The next prime is 51660055566103. The reversal of 51660055566055 is 55066555006615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51660055566055 - 2²³ = 51660047177447 is a prime.

It is a super-2 number, since 2×51660055566055² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51660055565987 and 51660055566005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23616270 + ... + 25710859.

It is an arithmetic number, because the mean of its divisors is an integer number (7749045487350).

Almost surely, 2^{51660055566055} is an apocalyptic number.

51660055566055 is a deficient number, since it is larger than the sum of its proper divisors (10332308332745).

51660055566055 is a wasteful number, since it uses less digits than its factorization.

51660055566055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49536593.

The product of its (nonzero) digits is 20250000, while the sum is 55.

The spelling of 51660055566055 in words is "fifty-one trillion, six hundred sixty billion, fifty-five million, five hundred sixty-six thousand, fifty-five".