100550258605 has 4 divisors (see below), whose sum is σ = 120660310332. Its totient is φ = 80440206880.

The previous prime is 100550258597. The next prime is 100550258629. The reversal of 100550258605 is 506852055001.

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 47278848969 + 53271409636 = 217437^2 + 230806^2 .

It is not a de Polignac number, because 100550258605 - 2³ = 100550258597 is a prime.

It is a super-2 number, since 2×100550258605² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055025856 + ... + 10055025865.

It is an arithmetic number, because the mean of its divisors is an integer number (30165077583).

Almost surely, 2^100550258605 is an apocalyptic number.

It is an amenable number.

100550258605 is a deficient number, since it is larger than the sum of its proper divisors (20110051727).

100550258605 is an equidigital number, since it uses as much as digits as its factorization.

100550258605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110051726.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 100550258605 in words is "one hundred billion, five hundred fifty million, two hundred fifty-eight thousand, six hundred five".