66885888300 has 864 divisors, whose sum is σ = 262135222272. Its totient is φ = 12767040000.

The previous prime is 66885888263. The next prime is 66885888317. The reversal of 66885888300 is 388858866.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 510579235 + ... + 510579365.

It is an arithmetic number, because the mean of its divisors is an integer number (303397248).

Almost surely, 2^66885888300 is an apocalyptic number.

66885888300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66885888300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131067611136).

66885888300 is an abundant number, since it is smaller than the sum of its proper divisors (195249333972).

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

66885888300 is a wasteful number, since it uses less digits than its factorization.

66885888300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 60.

The spelling of 66885888300 in words is "sixty-six billion, eight hundred eighty-five million, eight hundred eighty-eight thousand, three hundred".