164554520 has 64 divisors (see below), whose sum is σ = 407272320. Its totient is φ = 59457024.

The previous prime is 164554477. The next prime is 164554549. The reversal of 164554520 is 25455461.

164554520 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21074 + ... + 27806.

It is an arithmetic number, because the mean of its divisors is an integer number (6363630).

Almost surely, 2^164554520 is an apocalyptic number.

164554520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164554520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203636160).

164554520 is an abundant number, since it is smaller than the sum of its proper divisors (242717800).

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

164554520 is a wasteful number, since it uses less digits than its factorization.

164554520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804 (or 6800 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 164554520 is about 12827.8805731890. The cubic root of 164554520 is about 547.9865999174.

It can be divided in two parts, 1645 and 54520, that added together give a palindrome (56165).

The spelling of 164554520 in words is "one hundred sixty-four million, five hundred fifty-four thousand, five hundred twenty".