14664771705638 has 4 divisors (see below), whose sum is σ = 21997157558460. Its totient is φ = 7332385852818.

The previous prime is 14664771705601. The next prime is 14664771705659. The reversal of 14664771705638 is 83650717746641.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 3666192926408 + ... + 3666192926411.

It is an arithmetic number, because the mean of its divisors is an integer number (5499289389615).

Almost surely, 2^{14664771705638} is an apocalyptic number.

14664771705638 is a deficient number, since it is larger than the sum of its proper divisors (7332385852822).

14664771705638 is an equidigital number, since it uses as much as digits as its factorization.

14664771705638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332385852821.

The product of its (nonzero) digits is 142248960, while the sum is 65.

The spelling of 14664771705638 in words is "fourteen trillion, six hundred sixty-four billion, seven hundred seventy-one million, seven hundred five thousand, six hundred thirty-eight".