104563661145266 has 16 divisors (see below), whose sum is σ = 161540889297624. Its totient is φ = 50724703839744.

The previous prime is 104563661145257. The next prime is 104563661145299. The reversal of 104563661145266 is 662541166365401.

It can be written as a sum of positive squares in 4 ways, for example, as 104531505124225 + 32156021041 = 10224065^2 + 179321^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001422105 + ... + 2001474348.

Almost surely, 2^{104563661145266} is an apocalyptic number.

104563661145266 is a deficient number, since it is larger than the sum of its proper divisors (56977228152358).

104563661145266 is a wasteful number, since it uses less digits than its factorization.

104563661145266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002896845.

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 104563661145266 in words is "one hundred four trillion, five hundred sixty-three billion, six hundred sixty-one million, one hundred forty-five thousand, two hundred sixty-six".