3280220471655 has 96 divisors (see below), whose sum is σ = 5769215337600. Its totient is φ = 1723957115904.

The previous prime is 3280220471641. The next prime is 3280220471683. The reversal of 3280220471655 is 5561740220823.

3280220471655 is a `hidden beast` number, since 3 + 280 + 2 + 204 + 7 + 165 + 5 = 666.

It is not a de Polignac number, because 3280220471655 - 2⁴ = 3280220471639 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3280220471655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 945579261 + ... + 945582729.

It is an arithmetic number, because the mean of its divisors is an integer number (60095993100).

Almost surely, 2^{3280220471655} is an apocalyptic number.

3280220471655 is a deficient number, since it is larger than the sum of its proper divisors (2488994865945).

3280220471655 is a wasteful number, since it uses less digits than its factorization.

3280220471655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585 (or 4582 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 3280220471655 in words is "three trillion, two hundred eighty billion, two hundred twenty million, four hundred seventy-one thousand, six hundred fifty-five".