164105864 has 16 divisors (see below), whose sum is σ = 331367820. Its totient is φ = 75741120.

The previous prime is 164105839. The next prime is 164105873. The reversal of 164105864 is 468501461.

It can be written as a sum of positive squares in 2 ways, for example, as 160224964 + 3880900 = 12658^2 + 1970^2 .

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, 788867 + ... + 789074.

Almost surely, 2^164105864 is an apocalyptic number.

It is an amenable number.

164105864 is an abundant number, since it is smaller than the sum of its proper divisors (167261956).

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

164105864 is a wasteful number, since it uses less digits than its factorization.

164105864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577960 (or 1577956 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 164105864 is about 12810.3811028400. The cubic root of 164105864 is about 547.4881202290.

The spelling of 164105864 in words is "one hundred sixty-four million, one hundred five thousand, eight hundred sixty-four".