3221816854040 has 16 divisors (see below), whose sum is σ = 7249087921680. Its totient is φ = 1288726741600.

The previous prime is 3221816854021. The next prime is 3221816854099. The reversal of 3221816854040 is 404586181223.

It is a junction number, because it is equal to n+sod(n) for n = 3221816853982 and 3221816854000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40272710636 + ... + 40272710715.

It is an arithmetic number, because the mean of its divisors is an integer number (453067995105).

Almost surely, 2^{3221816854040} is an apocalyptic number.

It is an amenable number.

3221816854040 is an abundant number, since it is smaller than the sum of its proper divisors (4027271067640).

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

3221816854040 is a wasteful number, since it uses less digits than its factorization.

3221816854040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80545421362 (or 80545421358 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 3221816854040 in words is "three trillion, two hundred twenty-one billion, eight hundred sixteen million, eight hundred fifty-four thousand, forty".