6366222261 has 24 divisors (see below), whose sum is σ = 10516431744. Its totient is φ = 3635379360.

The previous prime is 6366222241. The next prime is 6366222277. The reversal of 6366222261 is 1622226636.

6366222261 is a `hidden beast` number, since 6 + 3 + 6 + 622 + 2 + 26 + 1 = 666.

It is not a de Polignac number, because 6366222261 - 2¹¹ = 6366220213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6366222241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61755 + ... + 128631.

It is an arithmetic number, because the mean of its divisors is an integer number (438184656).

Almost surely, 2^6366222261 is an apocalyptic number.

It is an amenable number.

6366222261 is a deficient number, since it is larger than the sum of its proper divisors (4150209483).

6366222261 is a wasteful number, since it uses less digits than its factorization.

6366222261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68401 (or 68398 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6366222261 is about 79788.6098450148. The cubic root of 6366222261 is about 1853.3634707725.

Adding to 6366222261 its reverse (1622226636), we get a palindrome (7988448897).

The spelling of 6366222261 in words is "six billion, three hundred sixty-six million, two hundred twenty-two thousand, two hundred sixty-one".