516215334646 has 8 divisors (see below), whose sum is σ = 844716002184. Its totient is φ = 234643333920.

The previous prime is 516215334643. The next prime is 516215334653. The reversal of 516215334646 is 646433512615.

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

It is a junction number, because it is equal to n+sod(n) for n = 516215334596 and 516215334605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516215334643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11732166675 + ... + 11732166718.

It is an arithmetic number, because the mean of its divisors is an integer number (105589500273).

Almost surely, 2^516215334646 is an apocalyptic number.

516215334646 is a deficient number, since it is larger than the sum of its proper divisors (328500667538).

516215334646 is a wasteful number, since it uses less digits than its factorization.

516215334646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23464333406.

The product of its digits is 1555200, while the sum is 46.

The spelling of 516215334646 in words is "five hundred sixteen billion, two hundred fifteen million, three hundred thirty-four thousand, six hundred forty-six".