2090221966 has 16 divisors (see below), whose sum is σ = 3633707520. Its totient is φ = 883191960.

The previous prime is 2090221963. The next prime is 2090221979. The reversal of 2090221966 is 6691220902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090221963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050426 + ... + 1052413.

It is an arithmetic number, because the mean of its divisors is an integer number (227106720).

Almost surely, 2^2090221966 is an apocalyptic number.

2090221966 is a deficient number, since it is larger than the sum of its proper divisors (1543485554).

2090221966 is a wasteful number, since it uses less digits than its factorization.

2090221966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102919.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2090221966 is about 45718.9453727883. The cubic root of 2090221966 is about 1278.5885250912.

The spelling of 2090221966 in words is "two billion, ninety million, two hundred twenty-one thousand, nine hundred sixty-six".