164266668 has 18 divisors (see below), whose sum is σ = 415229724. Its totient is φ = 54755544.

The previous prime is 164266657. The next prime is 164266681. The reversal of 164266668 is 866662461.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2281446 + ... + 2281517.

It is an arithmetic number, because the mean of its divisors is an integer number (23068318).

Almost surely, 2^164266668 is an apocalyptic number.

164266668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

164266668 is an abundant number, since it is smaller than the sum of its proper divisors (250963056).

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

164266668 is a wasteful number, since it uses less digits than its factorization.

164266668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562973 (or 4562968 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 164266668 is about 12816.6558820934. The cubic root of 164266668 is about 547.6668860118. Note that the first 3 decimals are identical.

The spelling of 164266668 in words is "one hundred sixty-four million, two hundred sixty-six thousand, six hundred sixty-eight".