516505551069 has 8 divisors (see below), whose sum is σ = 689330577600. Its totient is φ = 344008779296.

The previous prime is 516505550999. The next prime is 516505551071. The reversal of 516505551069 is 960155505615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 516505551069 - 2⁷ = 516505550941 is a prime.

It is a super-2 number, since 2×516505551069² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516505551169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82060017 + ... + 82066310.

It is an arithmetic number, because the mean of its divisors is an integer number (86166322200).

Almost surely, 2^516505551069 is an apocalyptic number.

It is an amenable number.

516505551069 is a deficient number, since it is larger than the sum of its proper divisors (172825026531).

516505551069 is a wasteful number, since it uses less digits than its factorization.

516505551069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164127379.

The product of its (nonzero) digits is 1012500, while the sum is 48.

The spelling of 516505551069 in words is "five hundred sixteen billion, five hundred five million, five hundred fifty-one thousand, sixty-nine".