6331991336 has 32 divisors (see below), whose sum is σ = 13017581280. Its totient is φ = 2863560000.

The previous prime is 6331991321. The next prime is 6331991363.

6331991336 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6331991336² = 80188228558358129792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165290 + ... + 199961.

It is an arithmetic number, because the mean of its divisors is an integer number (406799415).

Almost surely, 2^6331991336 is an apocalyptic number.

It is an amenable number.

6331991336 is an abundant number, since it is smaller than the sum of its proper divisors (6685589944).

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

6331991336 is a wasteful number, since it uses less digits than its factorization.

6331991336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365465 (or 365461 counting only the distinct ones).

The product of its digits is 236196, while the sum is 44.

The square root of 6331991336 is about 79573.8106163077. The cubic root of 6331991336 is about 1850.0356784938.

The spelling of 6331991336 in words is "six billion, three hundred thirty-one million, nine hundred ninety-one thousand, three hundred thirty-six".