51466711065 has 64 divisors (see below), whose sum is σ = 102717407232. Its totient is φ = 21378067200.

The previous prime is 51466711063. The next prime is 51466711091. The reversal of 51466711065 is 56011766415.

It is a happy number.

It is not a de Polignac number, because 51466711065 - 2¹ = 51466711063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51466711063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2555224 + ... + 2575286.

It is an arithmetic number, because the mean of its divisors is an integer number (1604959488).

Almost surely, 2^51466711065 is an apocalyptic number.

51466711065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51466711065 is a deficient number, since it is larger than the sum of its proper divisors (51250696167).

51466711065 is a wasteful number, since it uses less digits than its factorization.

51466711065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22310.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 51466711065 in words is "fifty-one billion, four hundred sixty-six million, seven hundred eleven thousand, sixty-five".