164602162021 has 8 divisors (see below), whose sum is σ = 179784189504. Its totient is φ = 149456500320.

The previous prime is 164602161967. The next prime is 164602162069. The reversal of 164602162021 is 120261206461.

It is a happy number.

164602162021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164602162021 - 2¹⁵ = 164602129253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164602162321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9081976 + ... + 9100081.

It is an arithmetic number, because the mean of its divisors is an integer number (22473023688).

Almost surely, 2^164602162021 is an apocalyptic number.

164602162021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

164602162021 is a deficient number, since it is larger than the sum of its proper divisors (15182027483).

164602162021 is a wasteful number, since it uses less digits than its factorization.

164602162021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182891.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 164602162021 its reverse (120261206461), we get a palindrome (284863368482).

It can be divided in two parts, 164602 and 162021, that added together give a palindrome (326623).

The spelling of 164602162021 in words is "one hundred sixty-four billion, six hundred two million, one hundred sixty-two thousand, twenty-one".