164734912020 has 144 divisors (see below), whose sum is σ = 553874001408. Its totient is φ = 36439038720.

The previous prime is 164734912007. The next prime is 164734912039. The reversal of 164734912020 is 20219437461.

164734912020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 164734912020.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 812607 + ... + 994886.

It is an arithmetic number, because the mean of its divisors is an integer number (3846347232).

Almost surely, 2^164734912020 is an apocalyptic number.

164734912020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164734912020 is an abundant number, since it is smaller than the sum of its proper divisors (389139089388).

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

164734912020 is a wasteful number, since it uses less digits than its factorization.

164734912020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807550 (or 1807541 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 164734912020 in words is "one hundred sixty-four billion, seven hundred thirty-four million, nine hundred twelve thousand, twenty".