8366816641 has 8 divisors (see below), whose sum is σ = 8637767424. Its totient is φ = 8095931760.

The previous prime is 8366816617. The next prime is 8366816677. The reversal of 8366816641 is 1466186638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8366816641 - 2²⁵ = 8333262209 is a prime.

It is a super-2 number, since 2×8366816641² (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 (8366816141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469995 + ... + 487471.

It is an arithmetic number, because the mean of its divisors is an integer number (1079720928).

Almost surely, 2^8366816641 is an apocalyptic number.

It is an amenable number.

8366816641 is a deficient number, since it is larger than the sum of its proper divisors (270950783).

8366816641 is a wasteful number, since it uses less digits than its factorization.

8366816641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32951.

The product of its digits is 995328, while the sum is 49.

The square root of 8366816641 is about 91470.3046950211. The cubic root of 8366816641 is about 2030.1123997233.

The spelling of 8366816641 in words is "eight billion, three hundred sixty-six million, eight hundred sixteen thousand, six hundred forty-one".