2066497776 has 180 divisors, whose sum is σ = 6960213000. Its totient is φ = 570011904.

The previous prime is 2066497759. The next prime is 2066497801. The reversal of 2066497776 is 6777946602.

It is a happy number.

2066497776 is a `hidden beast` number, since 20 + 66 + 497 + 7 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 199575 + ... + 209673.

It is an arithmetic number, because the mean of its divisors is an integer number (38667850).

Almost surely, 2^2066497776 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 2066497776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3480106500).

2066497776 is an abundant number, since it is smaller than the sum of its proper divisors (4893715224).

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

2066497776 is a wasteful number, since it uses less digits than its factorization.

2066497776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156 (or 10140 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The square root of 2066497776 is about 45458.7480689911. The cubic root of 2066497776 is about 1273.7327459371.

The spelling of 2066497776 in words is "two billion, sixty-six million, four hundred ninety-seven thousand, seven hundred seventy-six".