6631211466 has 96 divisors (see below), whose sum is σ = 16540018560. Its totient is φ = 1900377600.

The previous prime is 6631211429. The next prime is 6631211467. The reversal of 6631211466 is 6641121366.

It is a happy number.

6631211466 is a `hidden beast` number, since 6 + 631 + 2 + 1 + 14 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6631211466.

It is not an unprimeable number, because it can be changed into a prime (6631211467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397126 + ... + 413486.

It is an arithmetic number, because the mean of its divisors is an integer number (172291860).

Almost surely, 2^6631211466 is an apocalyptic number.

6631211466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6631211466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8270009280).

6631211466 is an abundant number, since it is smaller than the sum of its proper divisors (9908807094).

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

6631211466 is a wasteful number, since it uses less digits than its factorization.

6631211466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16492 (or 16489 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 6631211466 is about 81432.2507732655. The cubic root of 6631211466 is about 1878.7296633536.

The spelling of 6631211466 in words is "six billion, six hundred thirty-one million, two hundred eleven thousand, four hundred sixty-six".