5166019860544 has 21 divisors (see below), whose sum is σ = 10251356742991. Its totient is φ = 2583000838720.

The previous prime is 5166019860539. The next prime is 5166019860557. The reversal of 5166019860544 is 4450689106615.

The square root of 5166019860544 is 2272888.

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

It is a super-2 number, since 2×5166019860544² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18041049 + ... + 18325159.

Almost surely, 2^{5166019860544} is an apocalyptic number.

5166019860544 is the 2272888-th square number.

It is an amenable number.

5166019860544 is a deficient number, since it is larger than the sum of its proper divisors (5085336882447).

5166019860544 is an frugal number, since it uses more digits than its factorization.

5166019860544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568234 (or 284113 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 5166019860544 in words is "five trillion, one hundred sixty-six billion, nineteen million, eight hundred sixty thousand, five hundred forty-four".