164158831268 has 6 divisors (see below), whose sum is σ = 287277954726. Its totient is φ = 82079415632.

The previous prime is 164158831261. The next prime is 164158831303. The reversal of 164158831268 is 862138851461.

It can be written as a sum of positive squares in only one way, i.e., 143525807104 + 20633024164 = 378848^2 + 143642^2 .

It is not an unprimeable number, because it can be changed into a prime (164158831261) 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 as a sum of consecutive naturals, namely, 20519853905 + ... + 20519853912.

It is an arithmetic number, because the mean of its divisors is an integer number (47879659121).

Almost surely, 2^164158831268 is an apocalyptic number.

It is an amenable number.

164158831268 is a deficient number, since it is larger than the sum of its proper divisors (123119123458).

164158831268 is a wasteful number, since it uses less digits than its factorization.

164158831268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41039707821 (or 41039707819 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 53.

The spelling of 164158831268 in words is "one hundred sixty-four billion, one hundred fifty-eight million, eight hundred thirty-one thousand, two hundred sixty-eight".