164221710 has 32 divisors (see below), whose sum is σ = 395413920. Its totient is φ = 43650048.

The previous prime is 164221703. The next prime is 164221723. The reversal of 164221710 is 17122461.

164221710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646 + ... + 18134.

It is an arithmetic number, because the mean of its divisors is an integer number (12356685).

Almost surely, 2^164221710 is an apocalyptic number.

164221710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164221710 is an abundant number, since it is smaller than the sum of its proper divisors (231192210).

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

164221710 is a wasteful number, since it uses less digits than its factorization.

164221710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17812.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 164221710 is about 12814.9018724296. The cubic root of 164221710 is about 547.6169179633.

The spelling of 164221710 in words is "one hundred sixty-four million, two hundred twenty-one thousand, seven hundred ten".