5566166505748 has 6 divisors (see below), whose sum is σ = 9740791385066. Its totient is φ = 2783083252872.

The previous prime is 5566166505743. The next prime is 5566166505751. The reversal of 5566166505748 is 8475056616655.

It can be written as a sum of positive squares in only one way, i.e., 5541560818704 + 24605687044 = 2354052^2 + 156862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5566166505748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566166505743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695770813215 + ... + 695770813222.

Almost surely, 2^{5566166505748} is an apocalyptic number.

It is an amenable number.

5566166505748 is a deficient number, since it is larger than the sum of its proper divisors (4174624879318).

5566166505748 is a wasteful number, since it uses less digits than its factorization.

5566166505748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391541626441 (or 1391541626439 counting only the distinct ones).

The product of its (nonzero) digits is 181440000, while the sum is 64.

The spelling of 5566166505748 in words is "five trillion, five hundred sixty-six billion, one hundred sixty-six million, five hundred five thousand, seven hundred forty-eight".