11066602551 has 4 divisors (see below), whose sum is σ = 14755470072. Its totient is φ = 7377735032.

The previous prime is 11066602543. The next prime is 11066602571. The reversal of 11066602551 is 15520666011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15520666011 = 3 ⋅5173555337.

It is a cyclic number.

It is not a de Polignac number, because 11066602551 - 2³ = 11066602543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066602501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844433756 + ... + 1844433761.

It is an arithmetic number, because the mean of its divisors is an integer number (3688867518).

Almost surely, 2^11066602551 is an apocalyptic number.

11066602551 is a deficient number, since it is larger than the sum of its proper divisors (3688867521).

11066602551 is an equidigital number, since it uses as much as digits as its factorization.

11066602551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688867520.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 11066602551 in words is "eleven billion, sixty-six million, six hundred two thousand, five hundred fifty-one".