2206650409 has 2 divisors, whose sum is σ = 2206650410. Its totient is φ = 2206650408.

The previous prime is 2206650373. The next prime is 2206650421. The reversal of 2206650409 is 9040566022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2031485184 + 175165225 = 45072^2 + 13235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206650409 - 2²¹ = 2204553257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2206653409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103325204 + 1103325205.

It is an arithmetic number, because the mean of its divisors is an integer number (1103325205).

Almost surely, 2^2206650409 is an apocalyptic number.

It is an amenable number.

2206650409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206650409 is an equidigital number, since it uses as much as digits as its factorization.

2206650409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2206650409 is about 46974.9977009047. The cubic root of 2206650409 is about 1301.9006535398.

The spelling of 2206650409 in words is "two billion, two hundred six million, six hundred fifty thousand, four hundred nine".