6516900163684 has 27 divisors (see below), whose sum is σ = 12115056209977. Its totient is φ = 3066735702464.

The previous prime is 6516900163619. The next prime is 6516900163687. The reversal of 6516900163684 is 4863610096156.

The square root of 6516900163684 is 2552822.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5073711200100 + 1443188963584 = 2252490^2 + 1201328^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6516900163687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 86758407 + ... + 86833489.

Almost surely, 2^{6516900163684} is an apocalyptic number.

6516900163684 is the 2552822-nd square number.

It is an amenable number.

6516900163684 is a deficient number, since it is larger than the sum of its proper divisors (5598156046293).

6516900163684 is an frugal number, since it uses more digits than its factorization.

6516900163684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150204 (or 75102 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 6516900163684 in words is "six trillion, five hundred sixteen billion, nine hundred million, one hundred sixty-three thousand, six hundred eighty-four".