2066421662 has 8 divisors (see below), whose sum is σ = 3110823336. Its totient is φ = 1029480552.

The previous prime is 2066421661. The next prime is 2066421719. The reversal of 2066421662 is 2661246602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066421661) 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 3 ways as a sum of consecutive naturals, for example, 1864448 + ... + 1865555.

It is an arithmetic number, because the mean of its divisors is an integer number (388852917).

Almost surely, 2^2066421662 is an apocalyptic number.

2066421662 is a deficient number, since it is larger than the sum of its proper divisors (1044401674).

2066421662 is a wasteful number, since it uses less digits than its factorization.

2066421662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730282.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2066421662 is about 45457.9108846854. The cubic root of 2066421662 is about 1273.7171075487.

The spelling of 2066421662 in words is "two billion, sixty-six million, four hundred twenty-one thousand, six hundred sixty-two".