164922688 has 56 divisors (see below), whose sum is σ = 375261632. Its totient is φ = 70447104.

The previous prime is 164922683. The next prime is 164922689. The reversal of 164922688 is 886229461.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164922683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244720 + ... + 245392.

Almost surely, 2^164922688 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 164922688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187630816).

164922688 is an abundant number, since it is smaller than the sum of its proper divisors (210338944).

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

164922688 is an equidigital number, since it uses as much as digits as its factorization.

164922688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1229 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 164922688 is about 12842.2228605487. Note that the first 3 decimals coincide. The cubic root of 164922688 is about 548.3949769381.

The spelling of 164922688 in words is "one hundred sixty-four million, nine hundred twenty-two thousand, six hundred eighty-eight".