51655264364472 has 64 divisors (see below), whose sum is σ = 141449506912800. Its totient is φ = 15646760263680.

The previous prime is 51655264364471. The next prime is 51655264364603. The reversal of 51655264364472 is 27446346255615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51655264364471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2182850929 + ... + 2182874592.

Almost surely, 2^{51655264364472} is an apocalyptic number.

It is an amenable number.

51655264364472 is an abundant number, since it is smaller than the sum of its proper divisors (89794242548328).

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

51655264364472 is a wasteful number, since it uses less digits than its factorization.

51655264364472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365725576 (or 4365725572 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 60.

The spelling of 51655264364472 in words is "fifty-one trillion, six hundred fifty-five billion, two hundred sixty-four million, three hundred sixty-four thousand, four hundred seventy-two".