11668569750 has 256 divisors, whose sum is σ = 34998912000. Its totient is φ = 2867011200.

The previous prime is 11668569749. The next prime is 11668569751. The reversal of 11668569750 is 5796586611.

11668569750 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 8 + 569 + 75 + 0 = 666.

11668569750 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11668569749) and next prime (11668569751).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668569751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4744021 + ... + 4746479.

It is an arithmetic number, because the mean of its divisors is an integer number (136714500).

Almost surely, 2^11668569750 is an apocalyptic number.

11668569750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11668569750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17499456000).

11668569750 is an abundant number, since it is smaller than the sum of its proper divisors (23330342250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11668569750 is a wasteful number, since it uses less digits than its factorization.

11668569750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2525 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 11668569750 in words is "eleven billion, six hundred sixty-eight million, five hundred sixty-nine thousand, seven hundred fifty".