123214541311666 has 16 divisors (see below), whose sum is σ = 214687631701440. Its totient is φ = 51940556056080.

The previous prime is 123214541311639. The next prime is 123214541311703. The reversal of 123214541311666 is 666113145412321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72139660336 + ... + 72139662043.

It is an arithmetic number, because the mean of its divisors is an integer number (13417976981340).

Almost surely, 2^{123214541311666} is an apocalyptic number.

123214541311666 is a deficient number, since it is larger than the sum of its proper divisors (91473090389774).

123214541311666 is a wasteful number, since it uses less digits than its factorization.

123214541311666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144279322449.

The product of its digits is 622080, while the sum is 46.

Adding to 123214541311666 its reverse (666113145412321), we get a palindrome (789327686723987).

The spelling of 123214541311666 in words is "one hundred twenty-three trillion, two hundred fourteen billion, five hundred forty-one million, three hundred eleven thousand, six hundred sixty-six".