208901068481 has 16 divisors (see below), whose sum is σ = 240658415616. Its totient is φ = 177622711056.

The previous prime is 208901068477. The next prime is 208901068547. The reversal of 208901068481 is 184860109802.

It is a happy number.

It is not a de Polignac number, because 208901068481 - 2² = 208901068477 is a prime.

It is a super-2 number, since 2×208901068481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208001068481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8777660 + ... + 8801426.

It is an arithmetic number, because the mean of its divisors is an integer number (15041150976).

Almost surely, 2^208901068481 is an apocalyptic number.

It is an amenable number.

208901068481 is a deficient number, since it is larger than the sum of its proper divisors (31757347135).

208901068481 is a wasteful number, since it uses less digits than its factorization.

208901068481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33788.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 208901068481 in words is "two hundred eight billion, nine hundred one million, sixty-eight thousand, four hundred eighty-one".