8366204881 has 4 divisors (see below), whose sum is σ = 8366643252. Its totient is φ = 8365766512.

The previous prime is 8366204879. The next prime is 8366204911. The reversal of 8366204881 is 1884026638.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4377145600 + 3989059281 = 66160^2 + 63159^2 .

It is a cyclic number.

It is not a de Polignac number, because 8366204881 - 2¹ = 8366204879 is a prime.

It is a super-2 number, since 2×8366204881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8366202881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189190 + ... + 229183.

It is an arithmetic number, because the mean of its divisors is an integer number (2091660813).

Almost surely, 2^8366204881 is an apocalyptic number.

It is an amenable number.

8366204881 is a deficient number, since it is larger than the sum of its proper divisors (438371).

8366204881 is a wasteful number, since it uses less digits than its factorization.

8366204881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438370.

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 8366204881 is about 91466.9605978027. The cubic root of 8366204881 is about 2030.0629196608.

The spelling of 8366204881 in words is "eight billion, three hundred sixty-six million, two hundred four thousand, eight hundred eighty-one".