164889712 has 40 divisors (see below), whose sum is σ = 345290400. Its totient is φ = 75828480.

The previous prime is 164889707. The next prime is 164889757. The reversal of 164889712 is 217988461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63414 + ... + 65962.

It is an arithmetic number, because the mean of its divisors is an integer number (8632260).

Almost surely, 2^164889712 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 164889712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172645200).

164889712 is an abundant number, since it is smaller than the sum of its proper divisors (180400688).

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

164889712 is a wasteful number, since it uses less digits than its factorization.

164889712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2875 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 164889712 is about 12840.9389064819. The cubic root of 164889712 is about 548.3584242996.

The spelling of 164889712 in words is "one hundred sixty-four million, eight hundred eighty-nine thousand, seven hundred twelve".