164684944312 has 32 divisors (see below), whose sum is σ = 371469801600. Its totient is φ = 66864563424.

The previous prime is 164684944309. The next prime is 164684944327. The reversal of 164684944312 is 213449486461.

It is a super-2 number, since 2×164684944312² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164684944312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77388478 + ... + 77390605.

It is an arithmetic number, because the mean of its divisors is an integer number (11608431300).

Almost surely, 2^164684944312 is an apocalyptic number.

It is an amenable number.

164684944312 is an abundant number, since it is smaller than the sum of its proper divisors (206784857288).

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

164684944312 is a wasteful number, since it uses less digits than its factorization.

164684944312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154779115 (or 154779111 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 52.

The spelling of 164684944312 in words is "one hundred sixty-four billion, six hundred eighty-four million, nine hundred forty-four thousand, three hundred twelve".