6101099991 has 24 divisors (see below), whose sum is σ = 10509557760. Its totient is φ = 3334761936.

The previous prime is 6101099969. The next prime is 6101099993. The reversal of 6101099991 is 1999901016.

It is not a de Polignac number, because 6101099991 - 2⁵ = 6101099959 is a prime.

It is a super-2 number, since 2×6101099991² = 74446842200360400162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101099993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2103831 + ... + 2106728.

It is an arithmetic number, because the mean of its divisors is an integer number (437898240).

Almost surely, 2^6101099991 is an apocalyptic number.

6101099991 is a deficient number, since it is larger than the sum of its proper divisors (4408457769).

6101099991 is a wasteful number, since it uses less digits than its factorization.

6101099991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210595 (or 4210592 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The square root of 6101099991 is about 78109.5384124116. The cubic root of 6101099991 is about 1827.2699586618.

The spelling of 6101099991 in words is "six billion, one hundred one million, ninety-nine thousand, nine hundred ninety-one".