516261673601 has 8 divisors (see below), whose sum is σ = 520949961000. Its totient is φ = 511575484672.

The previous prime is 516261673591. The next prime is 516261673607. The reversal of 516261673601 is 106376162615.

It can be written as a sum of positive squares in 4 ways, for example, as 58237272976 + 458024400625 = 241324^2 + 676775^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516261673601 is a prime.

It is a super-2 number, since 2×516261673601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (516261673607) 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, 28226 + ... + 1016523.

It is an arithmetic number, because the mean of its divisors is an integer number (65118745125).

Almost surely, 2^516261673601 is an apocalyptic number.

It is an amenable number.

516261673601 is a deficient number, since it is larger than the sum of its proper divisors (4688287399).

516261673601 is a wasteful number, since it uses less digits than its factorization.

516261673601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049235.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 516261673601 in words is "five hundred sixteen billion, two hundred sixty-one million, six hundred seventy-three thousand, six hundred one".