3215081356480 has 56 divisors (see below), whose sum is σ = 8749614269088. Its totient is φ = 1102313607168.

The previous prime is 3215081356471. The next prime is 3215081356493. The reversal of 3215081356480 is 846531805123.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 3215081356480.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717649849 + ... + 717654328.

It is an arithmetic number, because the mean of its divisors is an integer number (156243111948).

Almost surely, 2^{3215081356480} is an apocalyptic number.

It is an amenable number.

3215081356480 is an abundant number, since it is smaller than the sum of its proper divisors (5534532912608).

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

3215081356480 is a wasteful number, since it uses less digits than its factorization.

3215081356480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304201 (or 1435304191 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 3215081356480 in words is "three trillion, two hundred fifteen billion, eighty-one million, three hundred fifty-six thousand, four hundred eighty".