2066021662 has 16 divisors (see below), whose sum is σ = 3294415152. Its totient is φ = 968368000.

The previous prime is 2066021599. The next prime is 2066021663. The reversal of 2066021662 is 2661206602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066021663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112513 + ... + 129580.

It is an arithmetic number, because the mean of its divisors is an integer number (205900947).

Almost surely, 2^2066021662 is an apocalyptic number.

2066021662 is a deficient number, since it is larger than the sum of its proper divisors (1228393490).

2066021662 is a wasteful number, since it uses less digits than its factorization.

2066021662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242363.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2066021662 is about 45453.5109975016. The cubic root of 2066021662 is about 1273.6349172049.

The spelling of 2066021662 in words is "two billion, sixty-six million, twenty-one thousand, six hundred sixty-two".