667441574416 has 80 divisors (see below), whose sum is σ = 1355142015360. Its totient is φ = 318033838080.

The previous prime is 667441574413. The next prime is 667441574417. The reversal of 667441574416 is 614475144766.

It is not an unprimeable number, because it can be changed into a prime (667441574413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44396821 + ... + 44411851.

It is an arithmetic number, because the mean of its divisors is an integer number (16939275192).

Almost surely, 2^667441574416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667441574416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677571007680).

667441574416 is an abundant number, since it is smaller than the sum of its proper divisors (687700440944).

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

667441574416 is a wasteful number, since it uses less digits than its factorization.

667441574416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16304 (or 16298 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 55.

The spelling of 667441574416 in words is "six hundred sixty-seven billion, four hundred forty-one million, five hundred seventy-four thousand, four hundred sixteen".