2066207616 has 384 divisors, whose sum is σ = 6896954400. Its totient is φ = 615859200.

The previous prime is 2066207603. The next prime is 2066207639. The reversal of 2066207616 is 6167026602.

2066207616 is a `hidden beast` number, since 20 + 6 + 620 + 7 + 6 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33872226 + ... + 33872286.

Almost surely, 2^2066207616 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 2066207616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3448477200).

2066207616 is an abundant number, since it is smaller than the sum of its proper divisors (4830746784).

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

2066207616 is an frugal number, since it uses more digits than its factorization.

2066207616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2066207616 is about 45455.5564920286. The cubic root of 2066207616 is about 1273.6731275823.

The spelling of 2066207616 in words is "two billion, sixty-six million, two hundred seven thousand, six hundred sixteen".