51105044516 has 6 divisors (see below), whose sum is σ = 89433827910. Its totient is φ = 25552522256.

The previous prime is 51105044509. The next prime is 51105044521. The reversal of 51105044516 is 61544050115.

It can be written as a sum of positive squares in only one way, i.e., 37926004516 + 13179040000 = 194746^2 + 114800^2 .

It is a super-2 number, since 2×51105044516² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388130561 + ... + 6388130568.

It is an arithmetic number, because the mean of its divisors is an integer number (14905637985).

Almost surely, 2^51105044516 is an apocalyptic number.

It is an amenable number.

51105044516 is a deficient number, since it is larger than the sum of its proper divisors (38328783394).

51105044516 is a wasteful number, since it uses less digits than its factorization.

51105044516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776261133 (or 12776261131 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 51105044516 in words is "fifty-one billion, one hundred five million, forty-four thousand, five hundred sixteen".