6291944166 has 8 divisors (see below), whose sum is σ = 12583888344. Its totient is φ = 2097314720.

The previous prime is 6291944143. The next prime is 6291944167. The reversal of 6291944166 is 6614491926.

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

6291944166 is an admirable number.

It is a super-2 number, since 2×6291944166² = 79177122776122871112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6291944167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524328675 + ... + 524328686.

It is an arithmetic number, because the mean of its divisors is an integer number (1572986043).

Almost surely, 2^6291944166 is an apocalyptic number.

6291944166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6291944166 is a wasteful number, since it uses less digits than its factorization.

6291944166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048657366.

The product of its digits is 559872, while the sum is 48.

The square root of 6291944166 is about 79321.7761147593. The cubic root of 6291944166 is about 1846.1271956935.

The spelling of 6291944166 in words is "six billion, two hundred ninety-one million, nine hundred forty-four thousand, one hundred sixty-six".