6111666789 has 8 divisors (see below), whose sum is σ = 8503188672. Its totient is φ = 3897294720.

The previous prime is 6111666779. The next prime is 6111666797. The reversal of 6111666789 is 9876661116.

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

It is not a de Polignac number, because 6111666789 - 2⁷ = 6111666661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6111666739) 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, 44287372 + ... + 44287509.

It is an arithmetic number, because the mean of its divisors is an integer number (1062898584).

Almost surely, 2^6111666789 is an apocalyptic number.

6111666789 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6111666789 is a deficient number, since it is larger than the sum of its proper divisors (2391521883).

6111666789 is a wasteful number, since it uses less digits than its factorization.

6111666789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88574907.

The product of its digits is 653184, while the sum is 51.

The square root of 6111666789 is about 78177.1500439866. The cubic root of 6111666789 is about 1828.3242634173.

The spelling of 6111666789 in words is "six billion, one hundred eleven million, six hundred sixty-six thousand, seven hundred eighty-nine".