13660833961 has 2 divisors, whose sum is σ = 13660833962. Its totient is φ = 13660833960.

The previous prime is 13660833941. The next prime is 13660834003. The reversal of 13660833961 is 16933806631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11668104361 + 1992729600 = 108019^2 + 44640^2 .

It is a cyclic number.

It is not a de Polignac number, because 13660833961 - 2⁹ = 13660833449 is a prime.

It is not a weakly prime, because it can be changed into another prime (13660833941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830416980 + 6830416981.

It is an arithmetic number, because the mean of its divisors is an integer number (6830416981).

Almost surely, 2^13660833961 is an apocalyptic number.

It is an amenable number.

13660833961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13660833961 is an equidigital number, since it uses as much as digits as its factorization.

13660833961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 46.

It can be divided in two parts, 136608 and 33961, that added together give a square (170569 = 413²).

The spelling of 13660833961 in words is "thirteen billion, six hundred sixty million, eight hundred thirty-three thousand, nine hundred sixty-one".