6634440444366 has 64 divisors (see below), whose sum is σ = 17052377126400. Its totient is φ = 1872716398848.

The previous prime is 6634440444329. The next prime is 6634440444371.

6634440444366 is a `hidden beast` number, since 6 + 63 + 4 + 440 + 44 + 43 + 66 = 666.

6634440444366 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6634440444366² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105700131 + ... + 105762878.

It is an arithmetic number, because the mean of its divisors is an integer number (266443392600).

Almost surely, 2^{6634440444366} is an apocalyptic number.

6634440444366 is an abundant number, since it is smaller than the sum of its proper divisors (10417936682034).

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

6634440444366 is a wasteful number, since it uses less digits than its factorization.

6634440444366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211463110 (or 211463104 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 54.

The spelling of 6634440444366 in words is "six trillion, six hundred thirty-four billion, four hundred forty million, four hundred forty-four thousand, three hundred sixty-six".