2066263646 has 8 divisors (see below), whose sum is σ = 3199376064. Its totient is φ = 999804960.

The previous prime is 2066263643. The next prime is 2066263651. The reversal of 2066263646 is 6463626602.

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 (2066263643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16663355 + ... + 16663478.

It is an arithmetic number, because the mean of its divisors is an integer number (399922008).

Almost surely, 2^2066263646 is an apocalyptic number.

2066263646 is a deficient number, since it is larger than the sum of its proper divisors (1133112418).

2066263646 is a wasteful number, since it uses less digits than its factorization.

2066263646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33326866.

The product of its (nonzero) digits is 373248, while the sum is 41.

The square root of 2066263646 is about 45456.1728041418. The cubic root of 2066263646 is about 1273.6846403428.

The spelling of 2066263646 in words is "two billion, sixty-six million, two hundred sixty-three thousand, six hundred forty-six".