66600560600 has 96 divisors (see below), whose sum is σ = 177050334720. Its totient is φ = 22823752320.

The previous prime is 66600560569. The next prime is 66600560617. The reversal of 66600560600 is 606500666.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3326219 + ... + 3346181.

It is an arithmetic number, because the mean of its divisors is an integer number (1844274320).

Almost surely, 2^66600560600 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 66600560600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88525167360).

66600560600 is an abundant number, since it is smaller than the sum of its proper divisors (110449774120).

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

66600560600 is a wasteful number, since it uses less digits than its factorization.

66600560600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22369 (or 22360 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 66600560600 in words is "sixty-six billion, six hundred million, five hundred sixty thousand, six hundred".