3313266561 has 48 divisors (see below), whose sum is σ = 5547709440. Its totient is φ = 1883189760.

The previous prime is 3313266553. The next prime is 3313266571. The reversal of 3313266561 is 1656623133.

3313266561 is a `hidden beast` number, since 3 + 3 + 1 + 32 + 66 + 561 = 666.

It is not a de Polignac number, because 3313266561 - 2³ = 3313266553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3313266511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 489760 + ... + 496478.

It is an arithmetic number, because the mean of its divisors is an integer number (115577280).

Almost surely, 2^3313266561 is an apocalyptic number.

It is an amenable number.

3313266561 is a deficient number, since it is larger than the sum of its proper divisors (2234442879).

3313266561 is a wasteful number, since it uses less digits than its factorization.

3313266561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7046 (or 7043 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3313266561 is about 57560.9812372930. The cubic root of 3313266561 is about 1490.7979691902.

Adding to 3313266561 its reverse (1656623133), we get a palindrome (4969889694).

The spelling of 3313266561 in words is "three billion, three hundred thirteen million, two hundred sixty-six thousand, five hundred sixty-one".