51015116116 has 6 divisors (see below), whose sum is σ = 89276453210. Its totient is φ = 25507558056.

The previous prime is 51015116093. The next prime is 51015116123. The reversal of 51015116116 is 61161151015.

It can be written as a sum of positive squares in only one way, i.e., 50990156100 + 24960016 = 225810^2 + 4996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6376889511 + ... + 6376889518.

Almost surely, 2^51015116116 is an apocalyptic number.

It is an amenable number.

51015116116 is a deficient number, since it is larger than the sum of its proper divisors (38261337094).

51015116116 is a wasteful number, since it uses less digits than its factorization.

51015116116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753779033 (or 12753779031 counting only the distinct ones).

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

The spelling of 51015116116 in words is "fifty-one billion, fifteen million, one hundred sixteen thousand, one hundred sixteen".