86851546165 has 8 divisors (see below), whose sum is σ = 104322754008. Its totient is φ = 69413971200.

The previous prime is 86851546147. The next prime is 86851546181. The reversal of 86851546165 is 56164515868.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4776744996 + 82074801169 = 69114^2 + 286487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86851546165 - 2²⁷ = 86717328437 is a prime.

It is a super-2 number, since 2×86851546165² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8402536 + ... + 8412865.

It is an arithmetic number, because the mean of its divisors is an integer number (13040344251).

Almost surely, 2^86851546165 is an apocalyptic number.

It is an amenable number.

86851546165 is a deficient number, since it is larger than the sum of its proper divisors (17471207843).

86851546165 is a wasteful number, since it uses less digits than its factorization.

86851546165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16816439.

The product of its digits is 6912000, while the sum is 55.

The spelling of 86851546165 in words is "eighty-six billion, eight hundred fifty-one million, five hundred forty-six thousand, one hundred sixty-five".