5566166057 has 2 divisors, whose sum is σ = 5566166058. Its totient is φ = 5566166056.

The previous prime is 5566166029. The next prime is 5566166101. The reversal of 5566166057 is 7506616655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4068398656 + 1497767401 = 63784^2 + 38701^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566166057 - 2¹⁸ = 5565903913 is a prime.

It is not a weakly prime, because it can be changed into another prime (5566162057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783083028 + 2783083029.

It is an arithmetic number, because the mean of its divisors is an integer number (2783083029).

Almost surely, 2^5566166057 is an apocalyptic number.

It is an amenable number.

5566166057 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566166057 is an equidigital number, since it uses as much as digits as its factorization.

5566166057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The square root of 5566166057 is about 74606.7427046644. The cubic root of 5566166057 is about 1772.2244322713.

The spelling of 5566166057 in words is "five billion, five hundred sixty-six million, one hundred sixty-six thousand, fifty-seven".