51110061110605 has 24 divisors (see below), whose sum is σ = 71715138790392. Its totient is φ = 34865308864512.

The previous prime is 51110061110579. The next prime is 51110061110623. The reversal of 51110061110605 is 50601116001115.

It can be written as a sum of positive squares in 4 ways, for example, as 694565560836 + 50415495549769 = 833406^2 + 7100387^2 .

It is not a de Polignac number, because 51110061110605 - 2¹³ = 51110061102413 is a prime.

It is a super-2 number, since 2×51110061110605² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540399592 + ... + 540494161.

It is an arithmetic number, because the mean of its divisors is an integer number (2988130782933).

Almost surely, 2^{51110061110605} is an apocalyptic number.

It is an amenable number.

51110061110605 is a deficient number, since it is larger than the sum of its proper divisors (20605077679787).

51110061110605 is a wasteful number, since it uses less digits than its factorization.

51110061110605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080893965 (or 1080893958 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 28.

The spelling of 51110061110605 in words is "fifty-one trillion, one hundred ten billion, sixty-one million, one hundred ten thousand, six hundred five".