6656104537539 has 8 divisors (see below), whose sum is σ = 8875174075152. Its totient is φ = 4437219012480.

The previous prime is 6656104537529. The next prime is 6656104537591. The reversal of 6656104537539 is 9357354016566.

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

It is not a de Polignac number, because 6656104537539 - 2¹⁷ = 6656104406467 is a prime.

It is a super-2 number, since 2×6656104537539² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6656104537529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45918714 + ... + 46063439.

It is an arithmetic number, because the mean of its divisors is an integer number (1109396759394).

Almost surely, 2^{6656104537539} is an apocalyptic number.

6656104537539 is a deficient number, since it is larger than the sum of its proper divisors (2219069537613).

6656104537539 is a wasteful number, since it uses less digits than its factorization.

6656104537539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92006277.

The product of its (nonzero) digits is 61236000, while the sum is 60.

The spelling of 6656104537539 in words is "six trillion, six hundred fifty-six billion, one hundred four million, five hundred thirty-seven thousand, five hundred thirty-nine".