66734791189248 has 576 divisors, whose sum is σ = 220050315011072. Its totient is φ = 17483772395520.

The previous prime is 66734791189229. The next prime is 66734791189277. The reversal of 66734791189248 is 84298119743766.

It is a self number, because there is not a number n which added to its sum of digits gives 66734791189248.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14129743815 + ... + 14129748537.

Almost surely, 2^{66734791189248} 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 66734791189248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110025157505536).

66734791189248 is an abundant number, since it is smaller than the sum of its proper divisors (153315523821824).

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

66734791189248 is a wasteful number, since it uses less digits than its factorization.

66734791189248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060 (or 6046 counting only the distinct ones).

The product of its digits is 877879296, while the sum is 75.

The spelling of 66734791189248 in words is "sixty-six trillion, seven hundred thirty-four billion, seven hundred ninety-one million, one hundred eighty-nine thousand, two hundred forty-eight".