100808415517855 has 8 divisors (see below), whose sum is σ = 121037266926864. Its totient is φ = 80601953544000.

The previous prime is 100808415517829. The next prime is 100808415517867. The reversal of 100808415517855 is 558715514808001.

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

It is not a de Polignac number, because 100808415517855 - 2⁷ = 100808415517727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100808415517855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5597348881 + ... + 5597366890.

It is an arithmetic number, because the mean of its divisors is an integer number (15129658365858).

Almost surely, 2^{100808415517855} is an apocalyptic number.

100808415517855 is a deficient number, since it is larger than the sum of its proper divisors (20228851409009).

100808415517855 is a wasteful number, since it uses less digits than its factorization.

100808415517855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11194717577.

The product of its (nonzero) digits is 8960000, while the sum is 58.

The spelling of 100808415517855 in words is "one hundred trillion, eight hundred eight billion, four hundred fifteen million, five hundred seventeen thousand, eight hundred fifty-five".