164994544 has 80 divisors (see below), whose sum is σ = 385912800. Its totient is φ = 67322880.

The previous prime is 164994521. The next prime is 164994551. The reversal of 164994544 is 445499461.

It is a junction number, because it is equal to n+sod(n) for n = 164994494 and 164994503.

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, 83682 + ... + 85630.

It is an arithmetic number, because the mean of its divisors is an integer number (4823910).

Almost surely, 2^164994544 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 164994544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192956400).

164994544 is an abundant number, since it is smaller than the sum of its proper divisors (220918256).

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

164994544 is a wasteful number, since it uses less digits than its factorization.

164994544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2012 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 164994544 is about 12845.0202023975. The cubic root of 164994544 is about 548.4746097010.

The spelling of 164994544 in words is "one hundred sixty-four million, nine hundred ninety-four thousand, five hundred forty-four".