164020582 has 48 divisors (see below), whose sum is σ = 282606912. Its totient is φ = 71280000.

The previous prime is 164020547. The next prime is 164020601. The reversal of 164020582 is 285020461.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 164020582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605107 + ... + 605377.

It is an arithmetic number, because the mean of its divisors is an integer number (5887644).

Almost surely, 2^164020582 is an apocalyptic number.

164020582 is a deficient number, since it is larger than the sum of its proper divisors (118586330).

164020582 is a wasteful number, since it uses less digits than its factorization.

164020582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 164020582 is about 12807.0520417464. The cubic root of 164020582 is about 547.3932648490.

It can be divided in two parts, 1640 and 20582, that added together give a palindrome (22222).

The spelling of 164020582 in words is "one hundred sixty-four million, twenty thousand, five hundred eighty-two".