100555858285 has 16 divisors (see below), whose sum is σ = 122964836400. Its totient is φ = 78913336320.

The previous prime is 100555858283. The next prime is 100555858327. The reversal of 100555858285 is 582858555001.

It can be written as a sum of positive squares in 8 ways, for example, as 7048945764 + 93506912521 = 83958^2 + 305789^2 .

It is not a de Polignac number, because 100555858285 - 2¹ = 100555858283 is a prime.

It is a super-2 number, since 2×100555858285² (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 (100555858283) 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 15 ways as a sum of consecutive naturals, for example, 1688191 + ... + 1746739.

It is an arithmetic number, because the mean of its divisors is an integer number (7685302275).

Almost surely, 2^100555858285 is an apocalyptic number.

It is an amenable number.

100555858285 is a deficient number, since it is larger than the sum of its proper divisors (22408978115).

100555858285 is an equidigital number, since it uses as much as digits as its factorization.

100555858285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65088.

The product of its (nonzero) digits is 3200000, while the sum is 52.

The spelling of 100555858285 in words is "one hundred billion, five hundred fifty-five million, eight hundred fifty-eight thousand, two hundred eighty-five".