51333223660446 has 64 divisors (see below), whose sum is σ = 126828439718400. Its totient is φ = 13488103829376.

The previous prime is 51333223660391. The next prime is 51333223660451. The reversal of 51333223660446 is 64406632233315.

It is a super-2 number, since 2×51333223660446² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51333223660395 and 51333223660404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174605716 + ... + 174899463.

It is an arithmetic number, because the mean of its divisors is an integer number (1981694370600).

Almost surely, 2^{51333223660446} is an apocalyptic number.

51333223660446 is an abundant number, since it is smaller than the sum of its proper divisors (75495216057954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51333223660446 is a wasteful number, since it uses less digits than its factorization.

51333223660446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349505473.

The product of its (nonzero) digits is 5598720, while the sum is 48.

The spelling of 51333223660446 in words is "fifty-one trillion, three hundred thirty-three billion, two hundred twenty-three million, six hundred sixty thousand, four hundred forty-six".