11668889910 has 16 divisors (see below), whose sum is σ = 28005335856. Its totient is φ = 3111703968.

The previous prime is 11668889899. The next prime is 11668889917. The reversal of 11668889910 is 1998886611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668889917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194481469 + ... + 194481528.

It is an arithmetic number, because the mean of its divisors is an integer number (1750333491).

Almost surely, 2^11668889910 is an apocalyptic number.

11668889910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11668889910 is an abundant number, since it is smaller than the sum of its proper divisors (16336445946).

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

11668889910 is a wasteful number, since it uses less digits than its factorization.

11668889910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388963007.

The product of its (nonzero) digits is 1492992, while the sum is 57.

The spelling of 11668889910 in words is "eleven billion, six hundred sixty-eight million, eight hundred eighty-nine thousand, nine hundred ten".