164844388066 has 16 divisors (see below), whose sum is σ = 247954443264. Its totient is φ = 82192981104.

The previous prime is 164844388043. The next prime is 164844388097. The reversal of 164844388066 is 660883448461.

It is a self number, because there is not a number n which added to its sum of digits gives 164844388066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5602405 + ... + 5631751.

It is an arithmetic number, because the mean of its divisors is an integer number (15497152704).

Almost surely, 2^164844388066 is an apocalyptic number.

164844388066 is a deficient number, since it is larger than the sum of its proper divisors (83110055198).

164844388066 is a wasteful number, since it uses less digits than its factorization.

164844388066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37065.

The product of its (nonzero) digits is 21233664, while the sum is 58.

The spelling of 164844388066 in words is "one hundred sixty-four billion, eight hundred forty-four million, three hundred eighty-eight thousand, sixty-six".