2662551461209 has 2 divisors, whose sum is σ = 2662551461210. Its totient is φ = 2662551461208.

The previous prime is 2662551461201. The next prime is 2662551461221. The reversal of 2662551461209 is 9021641552662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1966333107600 + 696218353609 = 1402260^2 + 834397^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662551461209 - 2³ = 2662551461201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2662551461201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331275730604 + 1331275730605.

It is an arithmetic number, because the mean of its divisors is an integer number (1331275730605).

Almost surely, 2^{2662551461209} is an apocalyptic number.

It is an amenable number.

2662551461209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662551461209 is an equidigital number, since it uses as much as digits as its factorization.

2662551461209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 2662551461209 in words is "two trillion, six hundred sixty-two billion, five hundred fifty-one million, four hundred sixty-one thousand, two hundred nine".