164250644 has 12 divisors (see below), whose sum is σ = 290285268. Its totient is φ = 81312000.

The previous prime is 164250643. The next prime is 164250673. The reversal of 164250644 is 446052461.

It can be written as a sum of positive squares in 2 ways, for example, as 93354244 + 70896400 = 9662^2 + 8420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164250644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164250643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202877 + ... + 203684.

It is an arithmetic number, because the mean of its divisors is an integer number (24190439).

Almost surely, 2^164250644 is an apocalyptic number.

It is an amenable number.

164250644 is a deficient number, since it is larger than the sum of its proper divisors (126034624).

164250644 is a wasteful number, since it uses less digits than its factorization.

164250644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406666 (or 406664 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 164250644 is about 12816.0307427846. The cubic root of 164250644 is about 547.6490773683.

The spelling of 164250644 in words is "one hundred sixty-four million, two hundred fifty thousand, six hundred forty-four".