164803780 has 48 divisors (see below), whose sum is σ = 371661696. Its totient is φ = 61160960.

The previous prime is 164803759. The next prime is 164803789. The reversal of 164803780 is 87308461.

It is a happy number.

164803780 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

164803780 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (164803789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20727 + ... + 27553.

It is an arithmetic number, because the mean of its divisors is an integer number (7742952).

Almost surely, 2^164803780 is an apocalyptic number.

164803780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164803780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185830848).

164803780 is an abundant number, since it is smaller than the sum of its proper divisors (206857916).

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

164803780 is a wasteful number, since it uses less digits than its factorization.

164803780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924 (or 6922 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 164803780 is about 12837.5924534159. The cubic root of 164803780 is about 548.2631490523.

The spelling of 164803780 in words is "one hundred sixty-four million, eight hundred three thousand, seven hundred eighty".