164401145208 has 80 divisors (see below), whose sum is σ = 463048245000. Its totient is φ = 54494195904.

The previous prime is 164401145197. The next prime is 164401145213. The reversal of 164401145208 is 802541104461.

164401145208 is a `hidden beast` number, since 1 + 6 + 4 + 401 + 1 + 45 + 208 = 666.

It is a super-3 number, since 3×164401145208³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 592683 + ... + 824666.

Almost surely, 2^164401145208 is an apocalyptic number.

164401145208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

164401145208 is an abundant number, since it is smaller than the sum of its proper divisors (298647099792).

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

164401145208 is a wasteful number, since it uses less digits than its factorization.

164401145208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417546 (or 1417533 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

Adding to 164401145208 its reverse (802541104461), we get a palindrome (966942249669).

The spelling of 164401145208 in words is "one hundred sixty-four billion, four hundred one million, one hundred forty-five thousand, two hundred eight".