100550955109 has 6 divisors (see below), whose sum is σ = 110522950790. Its totient is φ = 91409959080.

The previous prime is 100550955103. The next prime is 100550955119. The reversal of 100550955109 is 901559055001.

It can be written as a sum of positive squares in only one way, i.e., 95474820100 + 5076135009 = 308990^2 + 71247^2 .

It is not a de Polignac number, because 100550955109 - 2³ = 100550955101 is a prime.

It is a super-2 number, since 2×100550955109² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100550955101) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 415499694 + ... + 415499935.

Almost surely, 2^100550955109 is an apocalyptic number.

It is an amenable number.

100550955109 is a deficient number, since it is larger than the sum of its proper divisors (9971995681).

100550955109 is an equidigital number, since it uses as much as digits as its factorization.

100550955109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830999651 (or 830999640 counting only the distinct ones).

The product of its (nonzero) digits is 50625, while the sum is 40.

The spelling of 100550955109 in words is "one hundred billion, five hundred fifty million, nine hundred fifty-five thousand, one hundred nine".