164321622 has 20 divisors (see below), whose sum is σ = 368202516. Its totient is φ = 54773820.

The previous prime is 164321593. The next prime is 164321623. The reversal of 164321622 is 226123461.

164321622 is a `hidden beast` number, since 1 + 6 + 4 + 32 + 1 + 622 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164321623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 507004 + ... + 507327.

Almost surely, 2^164321622 is an apocalyptic number.

164321622 is an abundant number, since it is smaller than the sum of its proper divisors (203880894).

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

164321622 is a wasteful number, since it uses less digits than its factorization.

164321622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014345 (or 1014336 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 164321622 is about 12818.7995537804. The cubic root of 164321622 is about 547.7279516170.

The spelling of 164321622 in words is "one hundred sixty-four million, three hundred twenty-one thousand, six hundred twenty-two".