661104313003333 has 16 divisors (see below), whose sum is σ = 665486625272560. Its totient is φ = 656730173260800.

The previous prime is 661104313003313. The next prime is 661104313003357. The reversal of 661104313003333 is 333300313401166.

It can be written as a sum of positive squares in 8 ways, for example, as 49318568107524 + 611785744895809 = 7022718^2 + 24734303^2 .

It is a cyclic number.

It is not a de Polignac number, because 661104313003333 - 2⁹ = 661104313002821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 661104313003292 and 661104313003301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661104313003313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594440541 + ... + 1594855117.

It is an arithmetic number, because the mean of its divisors is an integer number (41592914079535).

Almost surely, 2^{661104313003333} is an apocalyptic number.

It is an amenable number.

661104313003333 is a deficient number, since it is larger than the sum of its proper divisors (4382312269227).

661104313003333 is a wasteful number, since it uses less digits than its factorization.

661104313003333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424408.

The product of its (nonzero) digits is 104976, while the sum is 37.

Adding to 661104313003333 its reverse (333300313401166), we get a palindrome (994404626404499).

The spelling of 661104313003333 in words is "six hundred sixty-one trillion, one hundred four billion, three hundred thirteen million, three thousand, three hundred thirty-three".