3321020006840 has 64 divisors (see below), whose sum is σ = 7719516000000. Its totient is φ = 1284526264320.

The previous prime is 3321020006839. The next prime is 3321020006851. The reversal of 3321020006840 is 486000201233.

It is a super-2 number, since 2×3321020006840² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476606 + ... + 2620914.

It is an arithmetic number, because the mean of its divisors is an integer number (120617437500).

Almost surely, 2^{3321020006840} 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 3321020006840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3859758000000).

3321020006840 is an abundant number, since it is smaller than the sum of its proper divisors (4398495993160).

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

3321020006840 is a wasteful number, since it uses less digits than its factorization.

3321020006840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145600 (or 2145596 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 3321020006840 in words is "three trillion, three hundred twenty-one billion, twenty million, six thousand, eight hundred forty".