8065199646 has 56 divisors (see below), whose sum is σ = 20729628144. Its totient is φ = 2304339840.

The previous prime is 8065199621. The next prime is 8065199647. The reversal of 8065199646 is 6469915608.

It is a happy number.

8065199646 is a `hidden beast` number, since 80 + 6 + 519 + 9 + 6 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 8065199592 and 8065199601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8065199647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 384915 + ... + 405326.

Almost surely, 2^8065199646 is an apocalyptic number.

8065199646 is an abundant number, since it is smaller than the sum of its proper divisors (12664428498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8065199646 is an equidigital number, since it uses as much as digits as its factorization.

8065199646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790268 (or 790253 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 8065199646 is about 89806.4565941670. The cubic root of 8065199646 is about 2005.4186099085.

The spelling of 8065199646 in words is "eight billion, sixty-five million, one hundred ninety-nine thousand, six hundred forty-six".