14666737991 has 4 divisors (see below), whose sum is σ = 14669996712. Its totient is φ = 14663479272.

The previous prime is 14666737931. The next prime is 14666738017. The reversal of 14666737991 is 19973766641.

14666737991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 14666737991 - 2³⁰ = 13592996167 is a prime.

It is a super-2 number, since 2×14666737991² (a number of 21 digits) contains 22 as substring.

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 14666737991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14666737931) 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 3 ways as a sum of consecutive naturals, for example, 1622600 + ... + 1631613.

It is an arithmetic number, because the mean of its divisors is an integer number (3667499178).

Almost surely, 2^14666737991 is an apocalyptic number.

14666737991 is a deficient number, since it is larger than the sum of its proper divisors (3258721).

14666737991 is an equidigital number, since it uses as much as digits as its factorization.

14666737991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258720.

The product of its digits is 10287648, while the sum is 59.

The spelling of 14666737991 in words is "fourteen billion, six hundred sixty-six million, seven hundred thirty-seven thousand, nine hundred ninety-one".