100717600805 has 4 divisors (see below), whose sum is σ = 120861120972. Its totient is φ = 80574080640.

The previous prime is 100717600787. The next prime is 100717600813. The reversal of 100717600805 is 508006717001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46338159169 + 54379441636 = 215263^2 + 233194^2 .

It is not a de Polignac number, because 100717600805 - 2⁶ = 100717600741 is a prime.

It is a super-2 number, since 2×100717600805² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10071760076 + ... + 10071760085.

It is an arithmetic number, because the mean of its divisors is an integer number (30215280243).

Almost surely, 2^100717600805 is an apocalyptic number.

It is an amenable number.

100717600805 is a deficient number, since it is larger than the sum of its proper divisors (20143520167).

100717600805 is an equidigital number, since it uses as much as digits as its factorization.

100717600805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20143520166.

The product of its (nonzero) digits is 11760, while the sum is 35.

The spelling of 100717600805 in words is "one hundred billion, seven hundred seventeen million, six hundred thousand, eight hundred five".