5566165951 has 2 divisors, whose sum is σ = 5566165952. Its totient is φ = 5566165950.

The previous prime is 5566165939. The next prime is 5566166009. The reversal of 5566165951 is 1595616655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5566165951 - 2¹³ = 5566157759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5566165895 and 5566165904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5566165151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783082975 + 2783082976.

It is an arithmetic number, because the mean of its divisors is an integer number (2783082976).

Almost surely, 2^5566165951 is an apocalyptic number.

5566165951 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566165951 is an equidigital number, since it uses as much as digits as its factorization.

5566165951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215000, while the sum is 49.

The square root of 5566165951 is about 74606.7419942729. The cubic root of 5566165951 is about 1772.2244210214.

The spelling of 5566165951 in words is "five billion, five hundred sixty-six million, one hundred sixty-five thousand, nine hundred fifty-one".