8150664820 has 12 divisors (see below), whose sum is σ = 17116396164. Its totient is φ = 3260265920.

The previous prime is 8150664811. The next prime is 8150664871. The reversal of 8150664820 is 284660518.

It can be written as a sum of positive squares in 2 ways, for example, as 3204918544 + 4945746276 = 56612^2 + 70326^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 203766601 + ... + 203766640.

It is an arithmetic number, because the mean of its divisors is an integer number (1426366347).

Almost surely, 2^8150664820 is an apocalyptic number.

It is an amenable number.

8150664820 is an abundant number, since it is smaller than the sum of its proper divisors (8965731344).

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

8150664820 is a wasteful number, since it uses less digits than its factorization.

8150664820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407533250 (or 407533248 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 8150664820 is about 90281.0324486822. The cubic root of 8150664820 is about 2012.4773970688.

The spelling of 8150664820 in words is "eight billion, one hundred fifty million, six hundred sixty-four thousand, eight hundred twenty".