100550106065 has 4 divisors (see below), whose sum is σ = 120660127284. Its totient is φ = 80440084848.

The previous prime is 100550106061. The next prime is 100550106071. The reversal of 100550106065 is 560601055001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21772773136 + 78777332929 = 147556^2 + 280673^2 .

It is a cyclic number.

It is not a de Polignac number, because 100550106065 - 2² = 100550106061 is a prime.

It is a super-2 number, since 2×100550106065² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100550106061) 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 3 ways as a sum of consecutive naturals, for example, 10055010602 + ... + 10055010611.

It is an arithmetic number, because the mean of its divisors is an integer number (30165031821).

Almost surely, 2^100550106065 is an apocalyptic number.

It is an amenable number.

100550106065 is a deficient number, since it is larger than the sum of its proper divisors (20110021219).

100550106065 is an equidigital number, since it uses as much as digits as its factorization.

100550106065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110021218.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 100550106065 in words is "one hundred billion, five hundred fifty million, one hundred six thousand, sixty-five".