66441903048 has 160 divisors (see below), whose sum is σ = 192727735200. Its totient is φ = 21370874112.

The previous prime is 66441903023. The next prime is 66441903049. The reversal of 66441903048 is 84030914466.

It is a junction number, because it is equal to n+sod(n) for n = 66441902994 and 66441903012.

It is not an unprimeable number, because it can be changed into a prime (66441903049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2298348 + ... + 2327076.

It is an arithmetic number, because the mean of its divisors is an integer number (1204548345).

Almost surely, 2^66441903048 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 66441903048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96363867600).

66441903048 is an abundant number, since it is smaller than the sum of its proper divisors (126285832152).

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

66441903048 is a wasteful number, since it uses less digits than its factorization.

66441903048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28873 (or 28860 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 66441903048 in words is "sixty-six billion, four hundred forty-one million, nine hundred three thousand, forty-eight".