164233661432 has 32 divisors (see below), whose sum is σ = 314539465680. Its totient is φ = 80373646080.

The previous prime is 164233661407. The next prime is 164233661497. The reversal of 164233661432 is 234166332461.

It is a self number, because there is not a number n which added to its sum of digits gives 164233661432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996863 + ... + 1149870.

Almost surely, 2^164233661432 is an apocalyptic number.

It is an amenable number.

164233661432 is a deficient number, since it is larger than the sum of its proper divisors (150305804248).

164233661432 is a wasteful number, since it uses less digits than its factorization.

164233661432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146943 (or 2146939 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

Adding to 164233661432 its reverse (234166332461), we get a palindrome (398399993893).

The spelling of 164233661432 in words is "one hundred sixty-four billion, two hundred thirty-three million, six hundred sixty-one thousand, four hundred thirty-two".