51010616016161 has 32 divisors (see below), whose sum is σ = 52817430302208. Its totient is φ = 49238156943360.

The previous prime is 51010616016119. The next prime is 51010616016169. The reversal of 51010616016161 is 16161061601015.

It is a cyclic number.

It is not a de Polignac number, because 51010616016161 - 2⁶ = 51010616016097 is a prime.

It is a super-2 number, since 2×51010616016161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51010616016169) 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, 6899849681 + ... + 6899857073.

It is an arithmetic number, because the mean of its divisors is an integer number (1650544696944).

Almost surely, 2^{51010616016161} is an apocalyptic number.

It is an amenable number.

51010616016161 is a deficient number, since it is larger than the sum of its proper divisors (1806814286047).

51010616016161 is a wasteful number, since it uses less digits than its factorization.

51010616016161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13481.

The product of its (nonzero) digits is 6480, while the sum is 35.

Adding to 51010616016161 its reverse (16161061601015), we get a palindrome (67171677617176).

The spelling of 51010616016161 in words is "fifty-one trillion, ten billion, six hundred sixteen million, sixteen thousand, one hundred sixty-one".