51612660121054 has 32 divisors (see below), whose sum is σ = 83906026444800. Its totient is φ = 23752808845920.

The previous prime is 51612660121037. The next prime is 51612660121081. The reversal of 51612660121054 is 45012106621615.

It is a junction number, because it is equal to n+sod(n) for n = 51612660120998 and 51612660121016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214100394 + ... + 214341325.

It is an arithmetic number, because the mean of its divisors is an integer number (2622063326400).

Almost surely, 2^{51612660121054} is an apocalyptic number.

51612660121054 is a deficient number, since it is larger than the sum of its proper divisors (32293366323746).

51612660121054 is a wasteful number, since it uses less digits than its factorization.

51612660121054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428441848.

The product of its (nonzero) digits is 86400, while the sum is 40.

Adding to 51612660121054 its reverse (45012106621615), we get a palindrome (96624766742669).

The spelling of 51612660121054 in words is "fifty-one trillion, six hundred twelve billion, six hundred sixty million, one hundred twenty-one thousand, fifty-four".