103666374685 has 4 divisors (see below), whose sum is σ = 124399649628. Its totient is φ = 82933099744.

The previous prime is 103666374673. The next prime is 103666374743. The reversal of 103666374685 is 586473666301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59424300441 + 44242074244 = 243771^2 + 210338^2 .

It is a cyclic number.

It is not a de Polignac number, because 103666374685 - 2⁷ = 103666374557 is a prime.

It is a Duffinian number.

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, 10366637464 + ... + 10366637473.

It is an arithmetic number, because the mean of its divisors is an integer number (31099912407).

Almost surely, 2^103666374685 is an apocalyptic number.

It is an amenable number.

103666374685 is a deficient number, since it is larger than the sum of its proper divisors (20733274943).

103666374685 is an equidigital number, since it uses as much as digits as its factorization.

103666374685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20733274942.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 103666374685 in words is "one hundred three billion, six hundred sixty-six million, three hundred seventy-four thousand, six hundred eighty-five".