11458656899 has 4 divisors (see below), whose sum is σ = 11725137336. Its totient is φ = 11192176464.

The previous prime is 11458656893. The next prime is 11458656907. The reversal of 11458656899 is 99865685411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99865685411 = 17 ⋅5874452083.

It is a cyclic number.

It is not a de Polignac number, because 11458656899 - 2¹⁶ = 11458591363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11458656893) 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, 133240154 + ... + 133240239.

It is an arithmetic number, because the mean of its divisors is an integer number (2931284334).

Almost surely, 2^11458656899 is an apocalyptic number.

11458656899 is a deficient number, since it is larger than the sum of its proper divisors (266480437).

11458656899 is an equidigital number, since it uses as much as digits as its factorization.

11458656899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266480436.

The product of its digits is 18662400, while the sum is 62.

The spelling of 11458656899 in words is "eleven billion, four hundred fifty-eight million, six hundred fifty-six thousand, eight hundred ninety-nine".