3320641521 has 8 divisors (see below), whose sum is σ = 4919468960. Its totient is φ = 2213760996.

The previous prime is 3320641517. The next prime is 3320641561. The reversal of 3320641521 is 1251460233.

It is not a de Polignac number, because 3320641521 - 2² = 3320641517 is a prime.

It is a super-2 number, since 2×3320641521² = 22053320221978386882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 122986723 = 3320641521 / (3 + 3 + 2 + 0 + 6 + 4 + 1 + 5 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3320641561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61493335 + ... + 61493388.

It is an arithmetic number, because the mean of its divisors is an integer number (614933620).

Almost surely, 2^3320641521 is an apocalyptic number.

It is an amenable number.

3320641521 is a deficient number, since it is larger than the sum of its proper divisors (1598827439).

3320641521 is a wasteful number, since it uses less digits than its factorization.

3320641521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122986732 (or 122986726 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3320641521 is about 57625.0077744029. The cubic root of 3320641521 is about 1491.9032659014.

The spelling of 3320641521 in words is "three billion, three hundred twenty million, six hundred forty-one thousand, five hundred twenty-one".