5166661227 has 32 divisors (see below), whose sum is σ = 8486435328. Its totient is φ = 2722761216.

The previous prime is 5166661223. The next prime is 5166661277. The reversal of 5166661227 is 7221666615.

It is not a de Polignac number, because 5166661227 - 2² = 5166661223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5166661223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309363 + ... + 325635.

It is an arithmetic number, because the mean of its divisors is an integer number (265201104).

Almost surely, 2^5166661227 is an apocalyptic number.

5166661227 is a deficient number, since it is larger than the sum of its proper divisors (3319774101).

5166661227 is a wasteful number, since it uses less digits than its factorization.

5166661227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459.

The product of its digits is 181440, while the sum is 42.

The square root of 5166661227 is about 71879.4910040409. The cubic root of 5166661227 is about 1728.7677891753.

The spelling of 5166661227 in words is "five billion, one hundred sixty-six million, six hundred sixty-one thousand, two hundred twenty-seven".