164450556 has 72 divisors (see below), whose sum is σ = 430020864. Its totient is φ = 52958880.

The previous prime is 164450527. The next prime is 164450569. The reversal of 164450556 is 655054461.

164450556 = T₁₉₄₉ + T₁₉₅₀ + ... + T₂₀₃₁.

164450556 is a `hidden beast` number, since 1 + 64 + 45 + 0 + 556 = 666.

164450556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 164450556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139851 + ... + 141021.

It is an arithmetic number, because the mean of its divisors is an integer number (5972512).

Almost surely, 2^164450556 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 164450556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215010432).

164450556 is an abundant number, since it is smaller than the sum of its proper divisors (265570308).

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

164450556 is a wasteful number, since it uses less digits than its factorization.

164450556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 164450556 is about 12823.8276657167. The cubic root of 164450556 is about 547.8711713430.

The spelling of 164450556 in words is "one hundred sixty-four million, four hundred fifty thousand, five hundred fifty-six".