164966941986 has 32 divisors (see below), whose sum is σ = 411346142208. Its totient is φ = 42848556240.

The previous prime is 164966941969. The next prime is 164966941999. The reversal of 164966941986 is 689149669461.

It is a self number, because there is not a number n which added to its sum of digits gives 164966941986.

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 15 ways as a sum of consecutive naturals, for example, 178535190 + ... + 178536113.

It is an arithmetic number, because the mean of its divisors is an integer number (12854566944).

Almost surely, 2^164966941986 is an apocalyptic number.

164966941986 is an abundant number, since it is smaller than the sum of its proper divisors (246379200222).

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

164966941986 is a wasteful number, since it uses less digits than its factorization.

164966941986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357071326.

The product of its digits is 120932352, while the sum is 69.

The spelling of 164966941986 in words is "one hundred sixty-four billion, nine hundred sixty-six million, nine hundred forty-one thousand, nine hundred eighty-six".