8145686466 has 48 divisors (see below), whose sum is σ = 18105744384. Its totient is φ = 2645479872.

The previous prime is 8145686429. The next prime is 8145686491. The reversal of 8145686466 is 6646865418.

8145686466 is a `hidden beast` number, since 8 + 14 + 568 + 6 + 4 + 66 = 666.

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 23 ways as a sum of consecutive naturals, for example, 167070 + ... + 210246.

It is an arithmetic number, because the mean of its divisors is an integer number (377203008).

Almost surely, 2^8145686466 is an apocalyptic number.

8145686466 is an abundant number, since it is smaller than the sum of its proper divisors (9960057918).

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

8145686466 is a wasteful number, since it uses less digits than its factorization.

8145686466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43455 (or 43452 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 8145686466 is about 90253.4568091439. The cubic root of 8145686466 is about 2012.0675791534.

The spelling of 8145686466 in words is "eight billion, one hundred forty-five million, six hundred eighty-six thousand, four hundred sixty-six".