164027644 has 24 divisors (see below), whose sum is σ = 314189568. Its totient is φ = 74309040.

The previous prime is 164027641. The next prime is 164027653. The reversal of 164027644 is 446720461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164027641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7437 + ... + 19579.

It is an arithmetic number, because the mean of its divisors is an integer number (13091232).

Almost surely, 2^164027644 is an apocalyptic number.

It is an amenable number.

164027644 is a deficient number, since it is larger than the sum of its proper divisors (150161924).

164027644 is a wasteful number, since it uses less digits than its factorization.

164027644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12465 (or 12463 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 164027644 is about 12807.3277462553. The cubic root of 164027644 is about 547.4011208464.

The spelling of 164027644 in words is "one hundred sixty-four million, twenty-seven thousand, six hundred forty-four".