66020226266220 has 48 divisors (see below), whose sum is σ = 184871985285120. Its totient is φ = 17603931600576.

The previous prime is 66020226266177. The next prime is 66020226266227. The reversal of 66020226266220 is 2266262202066.

It is not an unprimeable number, because it can be changed into a prime (66020226266227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44961100 + ... + 46406259.

It is an arithmetic number, because the mean of its divisors is an integer number (3851499693440).

Almost surely, 2^{66020226266220} is an apocalyptic number.

66020226266220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66020226266220 is an abundant number, since it is smaller than the sum of its proper divisors (118851759018900).

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

66020226266220 is a wasteful number, since it uses less digits than its factorization.

66020226266220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91379414 (or 91379412 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

Adding to 66020226266220 its reverse (2266262202066), we get a palindrome (68286488468286).

The spelling of 66020226266220 in words is "sixty-six trillion, twenty billion, two hundred twenty-six million, two hundred sixty-six thousand, two hundred twenty".