100505000605 has 16 divisors (see below), whose sum is σ = 125880814080. Its totient is φ = 76889184768.

The previous prime is 100505000599. The next prime is 100505000627. The reversal of 100505000605 is 506000505001.

It is a cyclic number.

It is not a de Polignac number, because 100505000605 - 2¹¹ = 100504998557 is a prime.

It is a super-2 number, since 2×100505000605² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369004 + ... + 580666.

It is an arithmetic number, because the mean of its divisors is an integer number (7867550880).

Almost surely, 2^100505000605 is an apocalyptic number.

It is an amenable number.

100505000605 is a deficient number, since it is larger than the sum of its proper divisors (25375813475).

100505000605 is a wasteful number, since it uses less digits than its factorization.

100505000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215820.

The product of its (nonzero) digits is 750, while the sum is 22.

Adding to 100505000605 its reverse (506000505001), we get a palindrome (606505505606).

The spelling of 100505000605 in words is "one hundred billion, five hundred five million, six hundred five", and thus it is an aban number.