86186166692 has 12 divisors (see below), whose sum is σ = 151370291100. Its totient is φ = 42937512096.

The previous prime is 86186166643. The next prime is 86186166713. The reversal of 86186166692 is 29666168168.

It can be written as a sum of positive squares in 2 ways, for example, as 10480845376 + 75705321316 = 102376^2 + 275146^2 .

It is a super-2 number, since 2×86186166692² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38891567 + ... + 38893782.

It is an arithmetic number, because the mean of its divisors is an integer number (12614190925).

Almost surely, 2^86186166692 is an apocalyptic number.

It is an amenable number.

86186166692 is a deficient number, since it is larger than the sum of its proper divisors (65184124408).

86186166692 is a wasteful number, since it uses less digits than its factorization.

86186166692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77785630 (or 77785628 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 59.

The spelling of 86186166692 in words is "eighty-six billion, one hundred eighty-six million, one hundred sixty-six thousand, six hundred ninety-two".