51066014465 has 16 divisors (see below), whose sum is σ = 61672525200. Its totient is φ = 40591425792.

The previous prime is 51066014453. The next prime is 51066014497. The reversal of 51066014465 is 56441066015.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5985807424 + 45080207041 = 77368^2 + 212321^2 .

It is a cyclic number.

It is not a de Polignac number, because 51066014465 - 2¹⁰ = 51066013441 is a prime.

It is a super-3 number, since 3×51066014465³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450791 + ... + 552579.

It is an arithmetic number, because the mean of its divisors is an integer number (3854532825).

Almost surely, 2^51066014465 is an apocalyptic number.

It is an amenable number.

51066014465 is a deficient number, since it is larger than the sum of its proper divisors (10606510735).

51066014465 is a wasteful number, since it uses less digits than its factorization.

51066014465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102436.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 51066014465 in words is "fifty-one billion, sixty-six million, fourteen thousand, four hundred sixty-five".