10208238661 has 8 divisors (see below), whose sum is σ = 10787330880. Its totient is φ = 9633328128.

The previous prime is 10208238577. The next prime is 10208238673. The reversal of 10208238661 is 16683280201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10208238661 - 2¹¹ = 10208236613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10208238661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10208038661) 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, 1040401 + ... + 1050166.

It is an arithmetic number, because the mean of its divisors is an integer number (1348416360).

Almost surely, 2^10208238661 is an apocalyptic number.

It is an amenable number.

10208238661 is a deficient number, since it is larger than the sum of its proper divisors (579092219).

10208238661 is a wasteful number, since it uses less digits than its factorization.

10208238661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090843.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 10208238661 in words is "ten billion, two hundred eight million, two hundred thirty-eight thousand, six hundred sixty-one".