3220991480520 has 320 divisors, whose sum is σ = 11816891634240. Its totient is φ = 780410764800.

The previous prime is 3220991480501. The next prime is 3220991480593. The reversal of 3220991480520 is 250841990223.

3220991480520 is a `hidden beast` number, since 3 + 2 + 20 + 99 + 14 + 8 + 0 + 520 = 666.

3220991480520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3220991480520² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 66301759 + ... + 66350321.

It is an arithmetic number, because the mean of its divisors is an integer number (36927786357).

Almost surely, 2^{3220991480520} is an apocalyptic number.

3220991480520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220991480520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5908445817120).

3220991480520 is an abundant number, since it is smaller than the sum of its proper divisors (8595900153720).

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

3220991480520 is a wasteful number, since it uses less digits than its factorization.

3220991480520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50458 (or 50445 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 3220991480520 in words is "three trillion, two hundred twenty billion, nine hundred ninety-one million, four hundred eighty thousand, five hundred twenty".