66354200000 has 168 divisors, whose sum is σ = 179546664528. Its totient is φ = 24128000000.

The previous prime is 66354199979. The next prime is 66354200111. The reversal of 66354200000 is 245366.

66354200000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2184920 + ... + 2215080.

It is an arithmetic number, because the mean of its divisors is an integer number (1068730146).

Almost surely, 2^66354200000 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 66354200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89773332264).

66354200000 is an abundant number, since it is smaller than the sum of its proper divisors (113192464528).

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

66354200000 is an equidigital number, since it uses as much as digits as its factorization.

66354200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30209 (or 30179 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 66354200000 its reverse (245366), we get a palindrome (66354445366).

The spelling of 66354200000 in words is "sixty-six billion, three hundred fifty-four million, two hundred thousand".