51656116115050 has 12 divisors (see below), whose sum is σ = 96080375974086. Its totient is φ = 20662446446000.

The previous prime is 51656116115041. The next prime is 51656116115101. The reversal of 51656116115050 is 5051161165615.

It can be written as a sum of positive squares in 3 ways, for example, as 22193681174289 + 29462434940761 = 4711017^2 + 5427931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51656116114988 and 51656116115006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 516561161101 + ... + 516561161200.

Almost surely, 2^{51656116115050} is an apocalyptic number.

51656116115050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51656116115050 is a deficient number, since it is larger than the sum of its proper divisors (44424259859036).

51656116115050 is a wasteful number, since it uses less digits than its factorization.

51656116115050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033122322313 (or 1033122322308 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 51656116115050 in words is "fifty-one trillion, six hundred fifty-six billion, one hundred sixteen million, one hundred fifteen thousand, fifty".