164444916 has 24 divisors (see below), whose sum is σ = 391870080. Its totient is φ = 53648512.

The previous prime is 164444911. The next prime is 164444933. The reversal of 164444916 is 619444461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164444911) 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, 145221 + ... + 146348.

It is an arithmetic number, because the mean of its divisors is an integer number (16327920).

Almost surely, 2^164444916 is an apocalyptic number.

It is an amenable number.

164444916 is an abundant number, since it is smaller than the sum of its proper divisors (227425164).

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

164444916 is a wasteful number, since it uses less digits than its factorization.

164444916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291623 (or 291621 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 164444916 is about 12823.6077606889. The cubic root of 164444916 is about 547.8649080040.

The spelling of 164444916 in words is "one hundred sixty-four million, four hundred forty-four thousand, nine hundred sixteen".