164250220 has 12 divisors (see below), whose sum is σ = 344925504. Its totient is φ = 65700080.

The previous prime is 164250211. The next prime is 164250241. The reversal of 164250220 is 22052461.

It is a junction number, because it is equal to n+sod(n) for n = 164250191 and 164250200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106236 + ... + 4106275.

It is an arithmetic number, because the mean of its divisors is an integer number (28743792).

Almost surely, 2^164250220 is an apocalyptic number.

164250220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164250220 is an abundant number, since it is smaller than the sum of its proper divisors (180675284).

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

164250220 is a wasteful number, since it uses less digits than its factorization.

164250220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212520 (or 8212518 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 164250220 is about 12816.0142009909. The cubic root of 164250220 is about 547.6486061304.

The spelling of 164250220 in words is "one hundred sixty-four million, two hundred fifty thousand, two hundred twenty".