11896655399 has 4 divisors (see below), whose sum is σ = 12218186664. Its totient is φ = 11575124136.

The previous prime is 11896655371. The next prime is 11896655423. The reversal of 11896655399 is 99355669811.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11896655399 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 (11896655299) 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, 160765577 + ... + 160765650.

It is an arithmetic number, because the mean of its divisors is an integer number (3054546666).

Almost surely, 2^11896655399 is an apocalyptic number.

11896655399 is a deficient number, since it is larger than the sum of its proper divisors (321531265).

11896655399 is an equidigital number, since it uses as much as digits as its factorization.

11896655399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321531264.

The product of its digits is 15746400, while the sum is 62.

The spelling of 11896655399 in words is "eleven billion, eight hundred ninety-six million, six hundred fifty-five thousand, three hundred ninety-nine".