11663675215 has 4 divisors (see below), whose sum is σ = 13996410264. Its totient is φ = 9330940168.

The previous prime is 11663675201. The next prime is 11663675227. The reversal of 11663675215 is 51257636611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51257636611 = 47 ⋅1090588013.

It is a cyclic number.

It is not a de Polignac number, because 11663675215 - 2⁹ = 11663674703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166367517 + ... + 1166367526.

It is an arithmetic number, because the mean of its divisors is an integer number (3499102566).

Almost surely, 2^11663675215 is an apocalyptic number.

11663675215 is a deficient number, since it is larger than the sum of its proper divisors (2332735049).

11663675215 is an equidigital number, since it uses as much as digits as its factorization.

11663675215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332735048.

The product of its digits is 226800, while the sum is 43.

The spelling of 11663675215 in words is "eleven billion, six hundred sixty-three million, six hundred seventy-five thousand, two hundred fifteen".