6191166366 has 192 divisors, whose sum is σ = 17538197760. Its totient is φ = 1600845120.

The previous prime is 6191166347. The next prime is 6191166383. The reversal of 6191166366 is 6636611916.

6191166366 is a `hidden beast` number, since 6 + 1 + 9 + 1 + 1 + 6 + 636 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10099476 + ... + 10100088.

It is an arithmetic number, because the mean of its divisors is an integer number (91344780).

Almost surely, 2^6191166366 is an apocalyptic number.

6191166366 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6191166366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8769098880).

6191166366 is an abundant number, since it is smaller than the sum of its proper divisors (11347031394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6191166366 is a wasteful number, since it uses less digits than its factorization.

6191166366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 983 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 6191166366 is about 78683.9651136113. The cubic root of 6191166366 is about 1836.2176522268.

The spelling of 6191166366 in words is "six billion, one hundred ninety-one million, one hundred sixty-six thousand, three hundred sixty-six".