66340201488 has 240 divisors, whose sum is σ = 200706320640. Its totient is φ = 18812977920.

The previous prime is 66340201483. The next prime is 66340201517. The reversal of 66340201488 is 88410204366.

It is not an unprimeable number, because it can be changed into a prime (66340201483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9155595 + ... + 9162837.

It is an arithmetic number, because the mean of its divisors is an integer number (836276336).

Almost surely, 2^66340201488 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 66340201488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100353160320).

66340201488 is an abundant number, since it is smaller than the sum of its proper divisors (134366119152).

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

66340201488 is a wasteful number, since it uses less digits than its factorization.

66340201488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378 (or 7361 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 66340201488 in words is "sixty-six billion, three hundred forty million, two hundred one thousand, four hundred eighty-eight".