104620361561 has 8 divisors (see below), whose sum is σ = 110131070880. Its totient is φ = 99110089728.

The previous prime is 104620361557. The next prime is 104620361597. The reversal of 104620361561 is 165163026401.

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

It is not a de Polignac number, because 104620361561 - 2² = 104620361557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104620361551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456665 + ... + 646361.

It is an arithmetic number, because the mean of its divisors is an integer number (13766383860).

Almost surely, 2^104620361561 is an apocalyptic number.

It is an amenable number.

104620361561 is a deficient number, since it is larger than the sum of its proper divisors (5510709319).

104620361561 is a wasteful number, since it uses less digits than its factorization.

104620361561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218743.

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

Adding to 104620361561 its reverse (165163026401), we get a palindrome (269783387962).

The spelling of 104620361561 in words is "one hundred four billion, six hundred twenty million, three hundred sixty-one thousand, five hundred sixty-one".