6005500991 has 16 divisors (see below), whose sum is σ = 6968125440. Its totient is φ = 5069218560.

The previous prime is 6005500979. The next prime is 6005501011. The reversal of 6005500991 is 1990055006.

It is not a de Polignac number, because 6005500991 - 2¹⁴ = 6005484607 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 (6005500961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455210 + ... + 468216.

It is an arithmetic number, because the mean of its divisors is an integer number (435507840).

Almost surely, 2^6005500991 is an apocalyptic number.

6005500991 is a deficient number, since it is larger than the sum of its proper divisors (962624449).

6005500991 is a wasteful number, since it uses less digits than its factorization.

6005500991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 6005500991 is about 77495.1675332082. The cubic root of 6005500991 is about 1817.6757545382.

Adding to 6005500991 its reverse (1990055006), we get a palindrome (7995555997).

The spelling of 6005500991 in words is "six billion, five million, five hundred thousand, nine hundred ninety-one".