6631335443541 has 8 divisors (see below), whose sum is σ = 8922897844960. Its totient is φ = 4380331668912.

The previous prime is 6631335443533. The next prime is 6631335443549. The reversal of 6631335443541 is 1453445331366.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6631335443533) and next prime (6631335443549).

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

It is not a de Polignac number, because 6631335443541 - 2³ = 6631335443533 is a prime.

It is a super-2 number, since 2×6631335443541² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631335443549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10139656315 + ... + 10139656968.

It is an arithmetic number, because the mean of its divisors is an integer number (1115362230620).

Almost surely, 2^{6631335443541} is an apocalyptic number.

It is an amenable number.

6631335443541 is a deficient number, since it is larger than the sum of its proper divisors (2291562401419).

6631335443541 is a wasteful number, since it uses less digits than its factorization.

6631335443541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20279313395.

The product of its digits is 4665600, while the sum is 48.

The spelling of 6631335443541 in words is "six trillion, six hundred thirty-one billion, three hundred thirty-five million, four hundred forty-three thousand, five hundred forty-one".