13330040661 has 12 divisors (see below), whose sum is σ = 22005146592. Its totient is φ = 7617166056.

The previous prime is 13330040639. The next prime is 13330040683. The reversal of 13330040661 is 16604003331.

It is an interprime number because it is at equal distance from previous prime (13330040639) and next prime (13330040683).

It is not a de Polignac number, because 13330040661 - 2⁶ = 13330040597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330040161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105793911 + ... + 105794036.

It is an arithmetic number, because the mean of its divisors is an integer number (1833762216).

Almost surely, 2^13330040661 is an apocalyptic number.

It is an amenable number.

13330040661 is a deficient number, since it is larger than the sum of its proper divisors (8675105931).

13330040661 is a wasteful number, since it uses less digits than its factorization.

13330040661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211587960 (or 211587957 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 13330040661 its reverse (16604003331), we get a palindrome (29934043992).

The spelling of 13330040661 in words is "thirteen billion, three hundred thirty million, forty thousand, six hundred sixty-one".