5777221066 has 4 divisors (see below), whose sum is σ = 8665831602. Its totient is φ = 2888610532.

The previous prime is 5777221057. The next prime is 5777221069. The reversal of 5777221066 is 6601227775.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5776760025 + 461041 = 76005^2 + 679^2 .

It is not an unprimeable number, because it can be changed into a prime (5777221069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444305265 + ... + 1444305268.

Almost surely, 2^5777221066 is an apocalyptic number.

5777221066 is a deficient number, since it is larger than the sum of its proper divisors (2888610536).

5777221066 is a wasteful number, since it uses less digits than its factorization.

5777221066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888610535.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 5777221066 is about 76008.0329044240. The cubic root of 5777221066 is about 1794.3465695267.

The spelling of 5777221066 in words is "five billion, seven hundred seventy-seven million, two hundred twenty-one thousand, sixty-six".