164155641272 has 24 divisors (see below), whose sum is σ = 358043555160. Its totient is φ = 70352417520.

The previous prime is 164155641263. The next prime is 164155641323. The reversal of 164155641272 is 272146551461.

164155641272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164155641272² (a number of 23 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 209381804 + ... + 209382587.

It is an arithmetic number, because the mean of its divisors is an integer number (14918481465).

Almost surely, 2^164155641272 is an apocalyptic number.

It is an amenable number.

164155641272 is an abundant number, since it is smaller than the sum of its proper divisors (193887913888).

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

164155641272 is a wasteful number, since it uses less digits than its factorization.

164155641272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418764411 (or 418764400 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The spelling of 164155641272 in words is "one hundred sixty-four billion, one hundred fifty-five million, six hundred forty-one thousand, two hundred seventy-two".