6656201526613 has 4 divisors (see below), whose sum is σ = 6656211413280. Its totient is φ = 6656191639948.

The previous prime is 6656201526581. The next prime is 6656201526691. The reversal of 6656201526613 is 3166251026566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6656201526613 - 2⁵ = 6656201526581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656201526113) 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 in 3 ways as a sum of consecutive naturals, for example, 3853345 + ... + 5306662.

It is an arithmetic number, because the mean of its divisors is an integer number (1664052853320).

Almost surely, 2^{6656201526613} is an apocalyptic number.

It is an amenable number.

6656201526613 is a deficient number, since it is larger than the sum of its proper divisors (9886667).

6656201526613 is an equidigital number, since it uses as much as digits as its factorization.

6656201526613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9886666.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 6656201526613 in words is "six trillion, six hundred fifty-six billion, two hundred one million, five hundred twenty-six thousand, six hundred thirteen".