6664645132600 has 384 divisors, whose sum is σ = 19793508134400. Its totient is φ = 2029834598400.

The previous prime is 6664645132597. The next prime is 6664645132631. The reversal of 6664645132600 is 62315464666.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 162014035 + ... + 162055165.

It is an arithmetic number, because the mean of its divisors is an integer number (51545594100).

Almost surely, 2^{6664645132600} 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 6664645132600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9896754067200).

6664645132600 is an abundant number, since it is smaller than the sum of its proper divisors (13128863001800).

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

6664645132600 is a wasteful number, since it uses less digits than its factorization.

6664645132600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41503 (or 41494 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 6664645132600 in words is "six trillion, six hundred sixty-four billion, six hundred forty-five million, one hundred thirty-two thousand, six hundred".