164946720 has 48 divisors (see below), whose sum is σ = 519583680. Its totient is φ = 43985664.

The previous prime is 164946689. The next prime is 164946739. The reversal of 164946720 is 27649461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 171340 + ... + 172299.

It is an arithmetic number, because the mean of its divisors is an integer number (10824660).

Almost surely, 2^164946720 is an apocalyptic number.

164946720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164946720 is an abundant number, since it is smaller than the sum of its proper divisors (354636960).

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

164946720 is a wasteful number, since it uses less digits than its factorization.

164946720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343657 (or 343649 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 164946720 is about 12843.1584900288. The cubic root of 164946720 is about 548.4216124244.

The spelling of 164946720 in words is "one hundred sixty-four million, nine hundred forty-six thousand, seven hundred twenty".