11668478975 has 12 divisors (see below), whose sum is σ = 14515447440. Its totient is φ = 9304761600.

The previous prime is 11668478971. The next prime is 11668479007. The reversal of 11668478975 is 57987486611.

It is not a de Polignac number, because 11668478975 - 2² = 11668478971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668478971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742610 + ... + 758159.

It is an arithmetic number, because the mean of its divisors is an integer number (1209620620).

Almost surely, 2^11668478975 is an apocalyptic number.

11668478975 is a deficient number, since it is larger than the sum of its proper divisors (2846968465).

11668478975 is a wasteful number, since it uses less digits than its factorization.

11668478975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501090 (or 1501085 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 62.

The spelling of 11668478975 in words is "eleven billion, six hundred sixty-eight million, four hundred seventy-eight thousand, nine hundred seventy-five".