516646503341240 has 16 divisors (see below), whose sum is σ = 1162454632517880. Its totient is φ = 206658601336480.

The previous prime is 516646503341239. The next prime is 516646503341249. The reversal of 516646503341240 is 42143305646615.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516646503341249) 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, 6458081291726 + ... + 6458081291805.

Almost surely, 2^{516646503341240} is an apocalyptic number.

It is an amenable number.

516646503341240 is an abundant number, since it is smaller than the sum of its proper divisors (645808129176640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516646503341240 is a wasteful number, since it uses less digits than its factorization.

516646503341240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916162583542 (or 12916162583538 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

Adding to 516646503341240 its reverse (42143305646615), we get a palindrome (558789808987855).

The spelling of 516646503341240 in words is "five hundred sixteen trillion, six hundred forty-six billion, five hundred three million, three hundred forty-one thousand, two hundred forty".