51116600505 has 32 divisors (see below), whose sum is σ = 86124378240. Its totient is φ = 25817356800.

The previous prime is 51116600443. The next prime is 51116600519. The reversal of 51116600505 is 50500661115.

It is not a de Polignac number, because 51116600505 - 2⁷ = 51116600377 is a prime.

It is a super-2 number, since 2×51116600505² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734205 + ... + 800805.

It is an arithmetic number, because the mean of its divisors is an integer number (2691386820).

Almost surely, 2^51116600505 is an apocalyptic number.

It is an amenable number.

51116600505 is a deficient number, since it is larger than the sum of its proper divisors (35007777735).

51116600505 is a wasteful number, since it uses less digits than its factorization.

51116600505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69321.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 51116600505 in words is "fifty-one billion, one hundred sixteen million, six hundred thousand, five hundred five".