5666278357 has 2 divisors, whose sum is σ = 5666278358. Its totient is φ = 5666278356.

The previous prime is 5666278307. The next prime is 5666278379. The reversal of 5666278357 is 7538726665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5047960401 + 618317956 = 71049^2 + 24866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5666278357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5666278298 and 5666278307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666278307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833139178 + 2833139179.

It is an arithmetic number, because the mean of its divisors is an integer number (2833139179).

Almost surely, 2^5666278357 is an apocalyptic number.

It is an amenable number.

5666278357 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666278357 is an equidigital number, since it uses as much as digits as its factorization.

5666278357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12700800, while the sum is 55.

The square root of 5666278357 is about 75274.6860305641. The cubic root of 5666278357 is about 1782.7863566012.

The spelling of 5666278357 in words is "five billion, six hundred sixty-six million, two hundred seventy-eight thousand, three hundred fifty-seven".