3198221664 has 288 divisors, whose sum is σ = 9968999040. Its totient is φ = 894136320.

The previous prime is 3198221657. The next prime is 3198221731. The reversal of 3198221664 is 4661228913.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 9490104 + ... + 9490440.

It is an arithmetic number, because the mean of its divisors is an integer number (34614580).

Almost surely, 2^3198221664 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 3198221664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4984499520).

3198221664 is an abundant number, since it is smaller than the sum of its proper divisors (6770777376).

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

3198221664 is a wasteful number, since it uses less digits than its factorization.

3198221664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 415 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 3198221664 is about 56552.8218924573. The cubic root of 3198221664 is about 1473.3395719634.

The spelling of 3198221664 in words is "three billion, one hundred ninety-eight million, two hundred twenty-one thousand, six hundred sixty-four".