164701720 has 32 divisors (see below), whose sum is σ = 372867120. Its totient is φ = 65473920.

The previous prime is 164701717. The next prime is 164701721. The reversal of 164701720 is 27107461.

164701720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164701721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6111 + ... + 19150.

Almost surely, 2^164701720 is an apocalyptic number.

164701720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164701720 is an abundant number, since it is smaller than the sum of its proper divisors (208165400).

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

164701720 is a wasteful number, since it uses less digits than its factorization.

164701720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25435 (or 25431 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 164701720 is about 12833.6167934063. The cubic root of 164701720 is about 548.1499491978.

The spelling of 164701720 in words is "one hundred sixty-four million, seven hundred one thousand, seven hundred twenty".