3220166664 has 640 divisors, whose sum is σ = 11708928000. Its totient is φ = 811814400.

The previous prime is 3220166659. The next prime is 3220166689. The reversal of 3220166664 is 4666610223.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 159 ways as a sum of consecutive naturals, for example, 54579067 + ... + 54579125.

It is an arithmetic number, because the mean of its divisors is an integer number (18295200).

Almost surely, 2^3220166664 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 3220166664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5854464000).

3220166664 is an abundant number, since it is smaller than the sum of its proper divisors (8488761336).

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

3220166664 is a wasteful number, since it uses less digits than its factorization.

3220166664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 3220166664 is about 56746.5123509807. The cubic root of 3220166664 is about 1476.7017285917.

Adding to 3220166664 its reverse (4666610223), we get a palindrome (7886776887).

The spelling of 3220166664 in words is "three billion, two hundred twenty million, one hundred sixty-six thousand, six hundred sixty-four".