86650165723 has 4 divisors (see below), whose sum is σ = 94527453528. Its totient is φ = 78772877920.

The previous prime is 86650165681. The next prime is 86650165751. The reversal of 86650165723 is 32756105668.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86650165723 - 2³³ = 78060231131 is a prime.

It is a super-2 number, since 2×86650165723² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86650165123) 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 3 ways as a sum of consecutive naturals, for example, 3938643886 + ... + 3938643907.

It is an arithmetic number, because the mean of its divisors is an integer number (23631863382).

Almost surely, 2^86650165723 is an apocalyptic number.

86650165723 is a deficient number, since it is larger than the sum of its proper divisors (7877287805).

86650165723 is a wasteful number, since it uses less digits than its factorization.

86650165723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7877287804.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 86650165723 in words is "eighty-six billion, six hundred fifty million, one hundred sixty-five thousand, seven hundred twenty-three".