104288318220561 has 8 divisors (see below), whose sum is σ = 139285578468960. Its totient is φ = 69408301726272.

The previous prime is 104288318220523. The next prime is 104288318220607. The reversal of 104288318220561 is 165022813882401.

It is a happy number.

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

It is not a de Polignac number, because 104288318220561 - 2⁴⁶ = 33919574042897 is a prime.

It is a super-2 number, since 2×104288318220561² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104288318221561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29310936451 + ... + 29310940008.

It is an arithmetic number, because the mean of its divisors is an integer number (17410697308620).

Almost surely, 2^{104288318220561} is an apocalyptic number.

It is an amenable number.

104288318220561 is a deficient number, since it is larger than the sum of its proper divisors (34997260248399).

104288318220561 is an equidigital number, since it uses as much as digits as its factorization.

104288318220561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58621877055.

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 104288318220561 in words is "one hundred four trillion, two hundred eighty-eight billion, three hundred eighteen million, two hundred twenty thousand, five hundred sixty-one".