10206016605 has 20 divisors (see below), whose sum is σ = 18295230492. Its totient is φ = 5443208640.

The previous prime is 10206016591. The next prime is 10206016607. The reversal of 10206016605 is 50661060201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7032835044 + 3173181561 = 83862^2 + 56331^2 .

It is not a de Polignac number, because 10206016605 - 2¹⁴ = 10206000221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206016607) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12599616 + ... + 12600425.

Almost surely, 2^10206016605 is an apocalyptic number.

10206016605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10206016605 is a deficient number, since it is larger than the sum of its proper divisors (8089213887).

10206016605 is an equidigital number, since it uses as much as digits as its factorization.

10206016605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25200058 (or 25200049 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 10206016605 its reverse (50661060201), we get a palindrome (60867076806).

The spelling of 10206016605 in words is "ten billion, two hundred six million, sixteen thousand, six hundred five".