208401241165601 has 64 divisors (see below), whose sum is σ = 247468786454016. Its totient is φ = 173373230284800.

The previous prime is 208401241165493. The next prime is 208401241165609. The reversal of 208401241165601 is 106561142104802.

It is a cyclic number.

It is not a de Polignac number, because 208401241165601 - 2³⁸ = 208126363258657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208401241165609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14970271121 + ... + 14970285041.

It is an arithmetic number, because the mean of its divisors is an integer number (3866699788344).

Almost surely, 2^{208401241165601} is an apocalyptic number.

It is an amenable number.

208401241165601 is a deficient number, since it is larger than the sum of its proper divisors (39067545288415).

208401241165601 is a wasteful number, since it uses less digits than its factorization.

208401241165601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27482.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 208401241165601 in words is "two hundred eight trillion, four hundred one billion, two hundred forty-one million, one hundred sixty-five thousand, six hundred one".