11102001660553 has 4 divisors (see below), whose sum is σ = 11755060581780. Its totient is φ = 10448942739328.

The previous prime is 11102001660551. The next prime is 11102001660559. The reversal of 11102001660553 is 35506610020111.

It is a happy number.

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 7081282900624 + 4020718759929 = 2661068^2 + 2005173^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102001660553 - 2¹ = 11102001660551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102001660551) 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, 326529460588 + ... + 326529460621.

It is an arithmetic number, because the mean of its divisors is an integer number (2938765145445).

Almost surely, 2^{11102001660553} is an apocalyptic number.

It is an amenable number.

11102001660553 is a deficient number, since it is larger than the sum of its proper divisors (653058921227).

11102001660553 is an equidigital number, since it uses as much as digits as its factorization.

11102001660553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653058921226.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 11102001660553 its reverse (35506610020111), we get a palindrome (46608611680664).

The spelling of 11102001660553 in words is "eleven trillion, one hundred two billion, one million, six hundred sixty thousand, five hundred fifty-three".