11066320451 has 2 divisors, whose sum is σ = 11066320452. Its totient is φ = 11066320450.

The previous prime is 11066320403. The next prime is 11066320481. The reversal of 11066320451 is 15402366011.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15402366011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11066320451 - 2²² = 11062126147 is a prime.

It is not a weakly prime, because it can be changed into another prime (11066320481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533160225 + 5533160226.

It is an arithmetic number, because the mean of its divisors is an integer number (5533160226).

Almost surely, 2^11066320451 is an apocalyptic number.

11066320451 is a deficient number, since it is larger than the sum of its proper divisors (1).

11066320451 is an equidigital number, since it uses as much as digits as its factorization.

11066320451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 11066320451 its reverse (15402366011), we get a palindrome (26468686462).

The spelling of 11066320451 in words is "eleven billion, sixty-six million, three hundred twenty thousand, four hundred fifty-one".