2040206666 has 32 divisors (see below), whose sum is σ = 3251923200. Its totient is φ = 958484800.

The previous prime is 2040206657. The next prime is 2040206683. The reversal of 2040206666 is 6666020402.

It is a super-3 number, since 3×2040206666³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342671 + ... + 348573.

It is an arithmetic number, because the mean of its divisors is an integer number (101622600).

Almost surely, 2^2040206666 is an apocalyptic number.

2040206666 is a deficient number, since it is larger than the sum of its proper divisors (1211716534).

2040206666 is a wasteful number, since it uses less digits than its factorization.

2040206666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2040206666 is about 45168.6469356787. The cubic root of 2040206666 is about 1268.3079676183.

The spelling of 2040206666 in words is "two billion, forty million, two hundred six thousand, six hundred sixty-six".