104643633185 has 16 divisors (see below), whose sum is σ = 154550597376. Its totient is φ = 66235969728.

The previous prime is 104643633131. The next prime is 104643633203. The reversal of 104643633185 is 581336346401.

It is a cyclic number.

It is not a de Polignac number, because 104643633185 - 2¹² = 104643629089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114992549 + ... + 114993458.

It is an arithmetic number, because the mean of its divisors is an integer number (9659412336).

Almost surely, 2^104643633185 is an apocalyptic number.

It is an amenable number.

104643633185 is a deficient number, since it is larger than the sum of its proper divisors (49906964191).

104643633185 is a wasteful number, since it uses less digits than its factorization.

104643633185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229986032.

The product of its (nonzero) digits is 622080, while the sum is 44.

Adding to 104643633185 its reverse (581336346401), we get a palindrome (685979979586).

The spelling of 104643633185 in words is "one hundred four billion, six hundred forty-three million, six hundred thirty-three thousand, one hundred eighty-five".