51466664255600 has 60 divisors (see below), whose sum is σ = 134889448237800. Its totient is φ = 18715150636800.

The previous prime is 51466664255497. The next prime is 51466664255603. The reversal of 51466664255600 is 655246666415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51466664255603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5848480175 + ... + 5848488974.

It is an arithmetic number, because the mean of its divisors is an integer number (2248157470630).

Almost surely, 2^{51466664255600} is an apocalyptic number.

51466664255600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51466664255600 is an abundant number, since it is smaller than the sum of its proper divisors (83422783982200).

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

51466664255600 is a wasteful number, since it uses less digits than its factorization.

51466664255600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11696969178 (or 11696969167 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 56.

The spelling of 51466664255600 in words is "fifty-one trillion, four hundred sixty-six billion, six hundred sixty-four million, two hundred fifty-five thousand, six hundred".