164404266 has 16 divisors (see below), whose sum is σ = 354101664. Its totient is φ = 50585904.

The previous prime is 164404259. The next prime is 164404313. The reversal of 164404266 is 662404461.

It is a super-3 number, since 3×164404266³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053796 + ... + 1053951.

It is an arithmetic number, because the mean of its divisors is an integer number (22131354).

Almost surely, 2^164404266 is an apocalyptic number.

164404266 is an abundant number, since it is smaller than the sum of its proper divisors (189697398).

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

164404266 is a wasteful number, since it uses less digits than its factorization.

164404266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107765.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 164404266 is about 12822.0226953473. The cubic root of 164404266 is about 547.8197610852.

It can be divided in two parts, 16440 and 4266, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 164404266 in words is "one hundred sixty-four million, four hundred four thousand, two hundred sixty-six".