100550855805 has 8 divisors (see below), whose sum is σ = 160881369312. Its totient is φ = 53627123088.

The previous prime is 100550855771. The next prime is 100550855809. The reversal of 100550855805 is 508558055001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100550855805 - 2¹⁶ = 100550790269 is a prime.

It is a super-2 number, since 2×100550855805² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100550855809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3351695179 + ... + 3351695208.

It is an arithmetic number, because the mean of its divisors is an integer number (20110171164).

Almost surely, 2^100550855805 is an apocalyptic number.

100550855805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100550855805 is a deficient number, since it is larger than the sum of its proper divisors (60330513507).

100550855805 is an equidigital number, since it uses as much as digits as its factorization.

100550855805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703390395.

The product of its (nonzero) digits is 200000, while the sum is 42.

The spelling of 100550855805 in words is "one hundred billion, five hundred fifty million, eight hundred fifty-five thousand, eight hundred five".