86318165540 has 24 divisors (see below), whose sum is σ = 181661373432. Its totient is φ = 34452366080.

The previous prime is 86318165497. The next prime is 86318165561. The reversal of 86318165540 is 4556181368.

It can be written as a sum of positive squares in 4 ways, for example, as 15922401856 + 70395763684 = 126184^2 + 265322^2 .

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 7 ways as a sum of consecutive naturals, for example, 4671809 + ... + 4690248.

It is an arithmetic number, because the mean of its divisors is an integer number (7569223893).

Almost surely, 2^86318165540 is an apocalyptic number.

It is an amenable number.

86318165540 is an abundant number, since it is smaller than the sum of its proper divisors (95343207892).

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

86318165540 is a wasteful number, since it uses less digits than its factorization.

86318165540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362527 (or 9362525 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 86318165540 in words is "eighty-six billion, three hundred eighteen million, one hundred sixty-five thousand, five hundred forty".