104665636401 has 4 divisors (see below), whose sum is σ = 139554181872. Its totient is φ = 69777090932.

The previous prime is 104665636399. The next prime is 104665636409. The reversal of 104665636401 is 104636566401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104636566401 = 3 ⋅34878855467.

It is a cyclic number.

It is not a de Polignac number, because 104665636401 - 2¹ = 104665636399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104665636409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17444272731 + ... + 17444272736.

It is an arithmetic number, because the mean of its divisors is an integer number (34888545468).

Almost surely, 2^104665636401 is an apocalyptic number.

It is an amenable number.

104665636401 is a deficient number, since it is larger than the sum of its proper divisors (34888545471).

104665636401 is an equidigital number, since it uses as much as digits as its factorization.

104665636401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34888545470.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 104665636401 in words is "one hundred four billion, six hundred sixty-five million, six hundred thirty-six thousand, four hundred one".