66532200000 has 1008 divisors, whose sum is σ = 267825858048. Its totient is φ = 14515200000.

The previous prime is 66532199977. The next prime is 66532200011. The reversal of 66532200000 is 223566.

66532200000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 911399964 + ... + 911400036.

It is an arithmetic number, because the mean of its divisors is an integer number (265700256).

Almost surely, 2^66532200000 is an apocalyptic number.

66532200000 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 66532200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133912929024).

66532200000 is an abundant number, since it is smaller than the sum of its proper divisors (201293658048).

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

66532200000 is an equidigital number, since it uses as much as digits as its factorization.

66532200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 66532200000 its reverse (223566), we get a palindrome (66532423566).

The spelling of 66532200000 in words is "sixty-six billion, five hundred thirty-two million, two hundred thousand".