2206166090 has 16 divisors (see below), whose sum is σ = 3972124872. Its totient is φ = 882238464.

The previous prime is 2206166063. The next prime is 2206166101. The reversal of 2206166090 is 906616022.

It can be written as a sum of positive squares in 4 ways, for example, as 1514844241 + 691321849 = 38921^2 + 26293^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15362 + ... + 68178.

Almost surely, 2^2206166090 is an apocalyptic number.

2206166090 is a deficient number, since it is larger than the sum of its proper divisors (1765958782).

2206166090 is a wasteful number, since it uses less digits than its factorization.

2206166090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57001.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2206166090 is about 46969.8423459138. The cubic root of 2206166090 is about 1301.8053988564.

The spelling of 2206166090 in words is "two billion, two hundred six million, one hundred sixty-six thousand, ninety".