104163561653 has 4 divisors (see below), whose sum is σ = 104164382688. Its totient is φ = 104162740620.

The previous prime is 104163561643. The next prime is 104163561751. The reversal of 104163561653 is 356165361401.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 356165361401 = 223 ⋅1597154087.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104163561653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 104163561653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104163561613) 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, 175283 + ... + 488928.

It is an arithmetic number, because the mean of its divisors is an integer number (26041095672).

Almost surely, 2^104163561653 is an apocalyptic number.

It is an amenable number.

104163561653 is a deficient number, since it is larger than the sum of its proper divisors (821035).

104163561653 is an equidigital number, since it uses as much as digits as its factorization.

104163561653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821034.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 104163561653 in words is "one hundred four billion, one hundred sixty-three million, five hundred sixty-one thousand, six hundred fifty-three".