11930664959 has 4 divisors (see below), whose sum is σ = 11931153816. Its totient is φ = 11930176104.

The previous prime is 11930664917. The next prime is 11930664979. The reversal of 11930664959 is 95946603911.

It is a happy number.

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 11930664959 - 2²⁸ = 11662229503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11930664959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11930664979) 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, 205784 + ... + 257309.

It is an arithmetic number, because the mean of its divisors is an integer number (2982788454).

Almost surely, 2^11930664959 is an apocalyptic number.

11930664959 is a deficient number, since it is larger than the sum of its proper divisors (488857).

11930664959 is an equidigital number, since it uses as much as digits as its factorization.

11930664959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488856.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 11930664959 in words is "eleven billion, nine hundred thirty million, six hundred sixty-four thousand, nine hundred fifty-nine".