6556061611111 has 4 divisors (see below), whose sum is σ = 6901117485400. Its totient is φ = 6211005736824.

The previous prime is 6556061611081. The next prime is 6556061611133. The reversal of 6556061611111 is 1111161606556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6556061611111 - 2¹⁷ = 6556061480039 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 (6556061615111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172527937116 + ... + 172527937153.

It is an arithmetic number, because the mean of its divisors is an integer number (1725279371350).

Almost surely, 2^{6556061611111} is an apocalyptic number.

6556061611111 is a deficient number, since it is larger than the sum of its proper divisors (345055874289).

6556061611111 is a wasteful number, since it uses less digits than its factorization.

6556061611111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345055874288.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 6556061611111 in words is "six trillion, five hundred fifty-six billion, sixty-one million, six hundred eleven thousand, one hundred eleven".