51510616555106 has 16 divisors (see below), whose sum is σ = 78321011893560. Its totient is φ = 25405508524800.

The previous prime is 51510616555043. The next prime is 51510616555171. The reversal of 51510616555106 is 60155561601515.

It can be written as a sum of positive squares in 4 ways, for example, as 51438430299481 + 72186255625 = 7172059^2 + 268675^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 473929031 + ... + 474037706.

Almost surely, 2^{51510616555106} is an apocalyptic number.

51510616555106 is a deficient number, since it is larger than the sum of its proper divisors (26810395338454).

51510616555106 is a wasteful number, since it uses less digits than its factorization.

51510616555106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947967109.

The product of its (nonzero) digits is 675000, while the sum is 47.

It can be divided in two parts, 51510 and 616555106, that added together give a palindrome (616606616).

The spelling of 51510616555106 in words is "fifty-one trillion, five hundred ten billion, six hundred sixteen million, five hundred fifty-five thousand, one hundred six".