100555440115 has 64 divisors (see below), whose sum is σ = 139609733760. Its totient is φ = 68901580800.

The previous prime is 100555440109. The next prime is 100555440199. The reversal of 100555440115 is 511044555001.

It is not a de Polignac number, because 100555440115 - 2³ = 100555440107 is a prime.

It is a super-2 number, since 2×100555440115² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55832215 + ... + 55834015.

It is an arithmetic number, because the mean of its divisors is an integer number (2181402090).

Almost surely, 2^100555440115 is an apocalyptic number.

100555440115 is a deficient number, since it is larger than the sum of its proper divisors (39054293645).

100555440115 is a wasteful number, since it uses less digits than its factorization.

100555440115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 100555440115 its reverse (511044555001), we get a palindrome (611599995116).

The spelling of 100555440115 in words is "one hundred billion, five hundred fifty-five million, four hundred forty thousand, one hundred fifteen".