10228665591 has 6 divisors (see below), whose sum is σ = 14774739200. Its totient is φ = 6819110388.

The previous prime is 10228665581. The next prime is 10228665607. The reversal of 10228665591 is 19556682201.

10228665591 is a `hidden beast` number, since 10 + 2 + 2 + 86 + 6 + 559 + 1 = 666.

It is not a de Polignac number, because 10228665591 - 2⁹ = 10228665079 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 (10228665511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568259191 + ... + 568259208.

Almost surely, 2^10228665591 is an apocalyptic number.

10228665591 is a deficient number, since it is larger than the sum of its proper divisors (4546073609).

10228665591 is a wasteful number, since it uses less digits than its factorization.

10228665591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136518405 (or 1136518402 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 10228665591 in words is "ten billion, two hundred twenty-eight million, six hundred sixty-five thousand, five hundred ninety-one".