2066219278704 has 800 divisors, whose sum is σ = 7378280616960. Its totient is φ = 544824631296.

The previous prime is 2066219278681. The next prime is 2066219278709. The reversal of 2066219278704 is 4078729126602.

2066219278704 is a `hidden beast` number, since 2 + 0 + 6 + 621 + 9 + 2 + 7 + 8 + 7 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066219278709) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3709549594 + ... + 3709550150.

Almost surely, 2^{2066219278704} is an apocalyptic number.

2066219278704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066219278704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3689140308480).

2066219278704 is an abundant number, since it is smaller than the sum of its proper divisors (5312061338256).

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

2066219278704 is a wasteful number, since it uses less digits than its factorization.

2066219278704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 2066219278704 in words is "two trillion, sixty-six billion, two hundred nineteen million, two hundred seventy-eight thousand, seven hundred four".