164233210520 has 16 divisors (see below), whose sum is σ = 369524723760. Its totient is φ = 65693284192.

The previous prime is 164233210507. The next prime is 164233210543. The reversal of 164233210520 is 25012332461.

It is a happy number.

It is a congruent number.

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, 2052915092 + ... + 2052915171.

It is an arithmetic number, because the mean of its divisors is an integer number (23095295235).

Almost surely, 2^164233210520 is an apocalyptic number.

164233210520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164233210520 is an abundant number, since it is smaller than the sum of its proper divisors (205291513240).

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

164233210520 is a wasteful number, since it uses less digits than its factorization.

164233210520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105830274 (or 4105830270 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 164233210520 its reverse (25012332461), we get a palindrome (189245542981).

The spelling of 164233210520 in words is "one hundred sixty-four billion, two hundred thirty-three million, two hundred ten thousand, five hundred twenty".