6111666487 has 4 divisors (see below), whose sum is σ = 6174673456. Its totient is φ = 6048659520.

The previous prime is 6111666469. The next prime is 6111666569. The reversal of 6111666487 is 7846661116.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6111666487 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 (6111666427) 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, 31503339 + ... + 31503532.

It is an arithmetic number, because the mean of its divisors is an integer number (1543668364).

Almost surely, 2^6111666487 is an apocalyptic number.

6111666487 is a deficient number, since it is larger than the sum of its proper divisors (63006969).

6111666487 is an equidigital number, since it uses as much as digits as its factorization.

6111666487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63006968.

The product of its digits is 290304, while the sum is 46.

The square root of 6111666487 is about 78177.1481124759. The cubic root of 6111666487 is about 1828.3242333025.

The spelling of 6111666487 in words is "six billion, one hundred eleven million, six hundred sixty-six thousand, four hundred eighty-seven".