11663675251 has 4 divisors (see below), whose sum is σ = 11854883104. Its totient is φ = 11472467400.

The previous prime is 11663675237. The next prime is 11663675273. The reversal of 11663675251 is 15257636611.

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 11663675251 - 2¹⁹ = 11663150963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11663675198 and 11663675207.

It is not an unprimeable number, because it can be changed into a prime (11663675201) 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, 95603835 + ... + 95603956.

It is an arithmetic number, because the mean of its divisors is an integer number (2963720776).

Almost surely, 2^11663675251 is an apocalyptic number.

11663675251 is a deficient number, since it is larger than the sum of its proper divisors (191207853).

11663675251 is an equidigital number, since it uses as much as digits as its factorization.

11663675251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191207852.

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

The spelling of 11663675251 in words is "eleven billion, six hundred sixty-three million, six hundred seventy-five thousand, two hundred fifty-one".