100505105050550 has 96 divisors (see below), whose sum is σ = 189347387866560. Its totient is φ = 39686996390400.

The previous prime is 100505105050523. The next prime is 100505105050561. The reversal of 100505105050550 is 55050501505001.

It is a super-2 number, since 2×100505105050550² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10077715364 + ... + 10077725336.

It is an arithmetic number, because the mean of its divisors is an integer number (1972368623610).

Almost surely, 2^{100505105050550} is an apocalyptic number.

100505105050550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100505105050550 is a deficient number, since it is larger than the sum of its proper divisors (88842282816010).

100505105050550 is a wasteful number, since it uses less digits than its factorization.

100505105050550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16698 (or 16693 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

Adding to 100505105050550 its reverse (55050501505001), we get a palindrome (155555606555551).

The spelling of 100505105050550 in words is "one hundred trillion, five hundred five billion, one hundred five million, fifty thousand, five hundred fifty".