2066179995648 has 672 divisors, whose sum is σ = 6620511905280. Its totient is φ = 642105999360.

The previous prime is 2066179995647. The next prime is 2066179995679. The reversal of 2066179995648 is 8465999716602.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066179995647) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3223369408 + ... + 3223370048.

It is an arithmetic number, because the mean of its divisors is an integer number (9851952240).

Almost surely, 2^{2066179995648} 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 2066179995648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3310255952640).

2066179995648 is an abundant number, since it is smaller than the sum of its proper divisors (4554331909632).

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

2066179995648 is an equidigital number, since it uses as much as digits as its factorization.

2066179995648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 72.

The spelling of 2066179995648 in words is "two trillion, sixty-six billion, one hundred seventy-nine million, nine hundred ninety-five thousand, six hundred forty-eight".