6111611156663 has 12 divisors (see below), whose sum is σ = 6250845225672. Its totient is φ = 5975414556240.

The previous prime is 6111611156621. The next prime is 6111611156689. The reversal of 6111611156663 is 3666511161116.

It is not a de Polignac number, because 6111611156663 - 2¹⁶ = 6111611091127 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 (6111611156363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 720281 + ... + 3569597.

It is an arithmetic number, because the mean of its divisors is an integer number (520903768806).

Almost surely, 2^{6111611156663} is an apocalyptic number.

6111611156663 is a deficient number, since it is larger than the sum of its proper divisors (139234069009).

6111611156663 is an equidigital number, since it uses as much as digits as its factorization.

6111611156663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850382 (or 2850335 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The spelling of 6111611156663 in words is "six trillion, one hundred eleven billion, six hundred eleven million, one hundred fifty-six thousand, six hundred sixty-three".