2206066537 has 4 divisors (see below), whose sum is σ = 2210144836. Its totient is φ = 2201988240.

The previous prime is 2206066529. The next prime is 2206066559. The reversal of 2206066537 is 7356606022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280261081 + 1925805456 = 16741^2 + 43884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206066537 - 2³ = 2206066529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2206066496 and 2206066505.

It is not an unprimeable number, because it can be changed into a prime (2206066567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038338 + ... + 2039419.

It is an arithmetic number, because the mean of its divisors is an integer number (552536209).

Almost surely, 2^2206066537 is an apocalyptic number.

It is an amenable number.

2206066537 is a deficient number, since it is larger than the sum of its proper divisors (4078299).

2206066537 is an equidigital number, since it uses as much as digits as its factorization.

2206066537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078298.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 2206066537 is about 46968.7825794964. The cubic root of 2206066537 is about 1301.7858172871.

The spelling of 2206066537 in words is "two billion, two hundred six million, sixty-six thousand, five hundred thirty-seven".