11666818510 has 8 divisors (see below), whose sum is σ = 21000273336. Its totient is φ = 4666727400.

The previous prime is 11666818469. The next prime is 11666818543. The reversal of 11666818510 is 1581866611.

11666818510 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11666818510² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583340916 + ... + 583340935.

It is an arithmetic number, because the mean of its divisors is an integer number (2625034167).

Almost surely, 2^11666818510 is an apocalyptic number.

11666818510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11666818510 is a deficient number, since it is larger than the sum of its proper divisors (9333454826).

11666818510 is a wasteful number, since it uses less digits than its factorization.

11666818510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166681858.

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 11666818510 in words is "eleven billion, six hundred sixty-six million, eight hundred eighteen thousand, five hundred ten".