8065642236 has 12 divisors (see below), whose sum is σ = 18819831912. Its totient is φ = 2688547408.

The previous prime is 8065642229. The next prime is 8065642243. The reversal of 8065642236 is 6322465608.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8065642229) and next prime (8065642243).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336068415 + ... + 336068438.

It is an arithmetic number, because the mean of its divisors is an integer number (1568319326).

Almost surely, 2^8065642236 is an apocalyptic number.

It is an amenable number.

8065642236 is an abundant number, since it is smaller than the sum of its proper divisors (10754189676).

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

8065642236 is a wasteful number, since it uses less digits than its factorization.

8065642236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672136860 (or 672136858 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 8065642236 is about 89808.9206927686. The cubic root of 8065642236 is about 2005.4552926949.

The spelling of 8065642236 in words is "eight billion, sixty-five million, six hundred forty-two thousand, two hundred thirty-six".