11064228551 has 4 divisors (see below), whose sum is σ = 11162142192. Its totient is φ = 10966314912.

The previous prime is 11064228547. The next prime is 11064228557. The reversal of 11064228551 is 15582246011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11064228551 - 2² = 11064228547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11064228557) 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, 48956651 + ... + 48956876.

It is an arithmetic number, because the mean of its divisors is an integer number (2790535548).

Almost surely, 2^11064228551 is an apocalyptic number.

11064228551 is a deficient number, since it is larger than the sum of its proper divisors (97913641).

11064228551 is an equidigital number, since it uses as much as digits as its factorization.

11064228551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97913640.

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 11064228551 in words is "eleven billion, sixty-four million, two hundred twenty-eight thousand, five hundred fifty-one".