6529053486661 has 8 divisors (see below), whose sum is σ = 6568440064344. Its totient is φ = 6489724200960.

The previous prime is 6529053486653. The next prime is 6529053486673. The reversal of 6529053486661 is 1666843509256.

It can be written as a sum of positive squares in 4 ways, for example, as 3570894281761 + 2958159204900 = 1889681^2 + 1719930^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6529053486661 - 2³ = 6529053486653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6529053486661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6529053483661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14094376 + ... + 14550241.

It is an arithmetic number, because the mean of its divisors is an integer number (821055008043).

Almost surely, 2^{6529053486661} is an apocalyptic number.

It is an amenable number.

6529053486661 is a deficient number, since it is larger than the sum of its proper divisors (39386577683).

6529053486661 is a wasteful number, since it uses less digits than its factorization.

6529053486661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28645991.

The product of its (nonzero) digits is 55987200, while the sum is 61.

The spelling of 6529053486661 in words is "six trillion, five hundred twenty-nine billion, fifty-three million, four hundred eighty-six thousand, six hundred sixty-one".