100561120064 has 28 divisors (see below), whose sum is σ = 201415948704. Its totient is φ = 49810644864.

The previous prime is 100561120039. The next prime is 100561120067. The reversal of 100561120064 is 460021165001.

It is a super-2 number, since 2×100561120064² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561120067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7335524 + ... + 7349219.

Almost surely, 2^100561120064 is an apocalyptic number.

It is an amenable number.

100561120064 is an abundant number, since it is smaller than the sum of its proper divisors (100854828640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100561120064 is a wasteful number, since it uses less digits than its factorization.

100561120064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14684862 (or 14684852 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 100561120064 its reverse (460021165001), we get a palindrome (560582285065).

The spelling of 100561120064 in words is "one hundred billion, five hundred sixty-one million, one hundred twenty thousand, sixty-four".