164256166500 has 48 divisors (see below), whose sum is σ = 478313961216. Its totient is φ = 43801644000.

The previous prime is 164256166493. The next prime is 164256166517. The reversal of 164256166500 is 5661652461.

164256166500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54750556 + ... + 54753555.

It is an arithmetic number, because the mean of its divisors is an integer number (9964874192).

Almost surely, 2^164256166500 is an apocalyptic number.

164256166500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164256166500 is an abundant number, since it is smaller than the sum of its proper divisors (314057794716).

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

164256166500 is a wasteful number, since it uses less digits than its factorization.

164256166500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109504133 (or 109504121 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 164256166500 in words is "one hundred sixty-four billion, two hundred fifty-six million, one hundred sixty-six thousand, five hundred".