51660155101653 has 48 divisors (see below), whose sum is σ = 88447160547200. Its totient is φ = 29517292627776.

The previous prime is 51660155101651. The next prime is 51660155101843. The reversal of 51660155101653 is 35610155106615.

51660155101653 is a `hidden beast` number, since 5 + 1 + 6 + 60 + 15 + 510 + 1 + 65 + 3 = 666.

51660155101653 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 51660155101653 - 2¹ = 51660155101651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51660155101599 and 51660155101608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660155101651) 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 47 ways as a sum of consecutive naturals, for example, 16592523 + ... + 19458471.

Almost surely, 2^{51660155101653} is an apocalyptic number.

It is an amenable number.

51660155101653 is a deficient number, since it is larger than the sum of its proper divisors (36787005445547).

51660155101653 is a wasteful number, since it uses less digits than its factorization.

51660155101653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876568 (or 2876556 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 45.

The spelling of 51660155101653 in words is "fifty-one trillion, six hundred sixty billion, one hundred fifty-five million, one hundred one thousand, six hundred fifty-three".