104053121666 has 8 divisors (see below), whose sum is σ = 168085811964. Its totient is φ = 48024517680.

The previous prime is 104053121657. The next prime is 104053121681. The reversal of 104053121666 is 666121350401.

It can be written as a sum of positive squares in 2 ways, for example, as 97955854441 + 6097267225 = 312979^2 + 78085^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001021545 + ... + 2001021596.

Almost surely, 2^104053121666 is an apocalyptic number.

104053121666 is a deficient number, since it is larger than the sum of its proper divisors (64032690298).

104053121666 is a wasteful number, since it uses less digits than its factorization.

104053121666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002043156.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 104053121666 in words is "one hundred four billion, fifty-three million, one hundred twenty-one thousand, six hundred sixty-six".