164280347812 has 48 divisors (see below), whose sum is σ = 335380372992. Its totient is φ = 68949429120.

The previous prime is 164280347783. The next prime is 164280347813. The reversal of 164280347812 is 218743082461.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164280347813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700533 + ... + 905155.

It is an arithmetic number, because the mean of its divisors is an integer number (6987091104).

Almost surely, 2^164280347812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164280347812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167690186496).

164280347812 is an abundant number, since it is smaller than the sum of its proper divisors (171100025180).

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

164280347812 is a wasteful number, since it uses less digits than its factorization.

164280347812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205228 (or 205226 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 164280347812 in words is "one hundred sixty-four billion, two hundred eighty million, three hundred forty-seven thousand, eight hundred twelve".