11065605554 has 4 divisors (see below), whose sum is σ = 16598408334. Its totient is φ = 5532802776.

The previous prime is 11065605517. The next prime is 11065605557. The reversal of 11065605554 is 45550656011.

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 only one way, i.e., 6532680625 + 4532924929 = 80825^2 + 67327^2 .

It is not an unprimeable number, because it can be changed into a prime (11065605557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766401387 + ... + 2766401390.

Almost surely, 2^11065605554 is an apocalyptic number.

11065605554 is a deficient number, since it is larger than the sum of its proper divisors (5532802780).

11065605554 is an equidigital number, since it uses as much as digits as its factorization.

11065605554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532802779.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 11065605554 in words is "eleven billion, sixty-five million, six hundred five thousand, five hundred fifty-four".