100555501005 has 32 divisors (see below), whose sum is σ = 178779582720. Its totient is φ = 53625326400.

The previous prime is 100555500979. The next prime is 100555501019. The reversal of 100555501005 is 500105555001.

100555501005 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 5 + 550 + 100 + 5 = 666.

It is not a de Polignac number, because 100555501005 - 2¹¹ = 100555498957 is a prime.

It is a super-3 number, since 3×100555501005³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 100555501005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2411080 + ... + 2452430.

It is an arithmetic number, because the mean of its divisors is an integer number (5586861960).

Almost surely, 2^100555501005 is an apocalyptic number.

100555501005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100555501005 is a deficient number, since it is larger than the sum of its proper divisors (78224081715).

100555501005 is a wasteful number, since it uses less digits than its factorization.

100555501005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59378 (or 59372 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 100555501005 in words is "one hundred billion, five hundred fifty-five million, five hundred one thousand, five".