100105500550505 has 16 divisors (see below), whose sum is σ = 121936659030144. Its totient is φ = 78878030626560.

The previous prime is 100105500550463. The next prime is 100105500550541. The reversal of 100105500550505 is 505055005501001.

It is a de Polignac number, because none of the positive numbers 2^k-100105500550505 is a prime.

It is a super-2 number, since 2×100105500550505² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 18596237 + ... + 23367306.

It is an arithmetic number, because the mean of its divisors is an integer number (7621041189384).

Almost surely, 2^{100105500550505} is an apocalyptic number.

It is an amenable number.

100105500550505 is a deficient number, since it is larger than the sum of its proper divisors (21831158479639).

100105500550505 is an equidigital number, since it uses as much as digits as its factorization.

100105500550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41970736.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 100105500550505 in words is "one hundred trillion, one hundred five billion, five hundred million, five hundred fifty thousand, five hundred five".