164640428600 has 24 divisors (see below), whose sum is σ = 382788996960. Its totient is φ = 65856171360.

The previous prime is 164640428597. The next prime is 164640428653. The reversal of 164640428600 is 6824046461.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 411600872 + ... + 411601271.

It is an arithmetic number, because the mean of its divisors is an integer number (15949541540).

Almost surely, 2^164640428600 is an apocalyptic number.

164640428600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164640428600 is an abundant number, since it is smaller than the sum of its proper divisors (218148568360).

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

164640428600 is a wasteful number, since it uses less digits than its factorization.

164640428600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823202159 (or 823202150 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 164640428600 in words is "one hundred sixty-four billion, six hundred forty million, four hundred twenty-eight thousand, six hundred".