164539672 has 96 divisors (see below), whose sum is σ = 358142400. Its totient is φ = 70741440.

The previous prime is 164539667. The next prime is 164539673. The reversal of 164539672 is 276935461.

164539672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164539673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2455783 + ... + 2455849.

It is an arithmetic number, because the mean of its divisors is an integer number (3730650).

Almost surely, 2^164539672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164539672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179071200).

164539672 is an abundant number, since it is smaller than the sum of its proper divisors (193602728).

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

164539672 is a wasteful number, since it uses less digits than its factorization.

164539672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 182 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 164539672 is about 12827.3018207260. The cubic root of 164539672 is about 547.9701175387.

The spelling of 164539672 in words is "one hundred sixty-four million, five hundred thirty-nine thousand, six hundred seventy-two".