100605105000056 has 16 divisors (see below), whose sum is σ = 188634758353440. Its totient is φ = 50302502772480.

The previous prime is 100605105000047. The next prime is 100605105000073. The reversal of 100605105000056 is 650000501506001.

It is a junction number, because it is equal to n+sod(n) for n = 100605104999992 and 100605105000028.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226001 + ... + 14547071.

It is an arithmetic number, because the mean of its divisors is an integer number (11789672397090).

Almost surely, 2^{100605105000056} is an apocalyptic number.

It is an amenable number.

100605105000056 is a deficient number, since it is larger than the sum of its proper divisors (88029653353384).

100605105000056 is a wasteful number, since it uses less digits than its factorization.

100605105000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431894 (or 12431890 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 100605105000056 its reverse (650000501506001), we get a palindrome (750605606506057).

The spelling of 100605105000056 in words is "one hundred trillion, six hundred five billion, one hundred five million, fifty-six", and thus it is an aban number.