100545442645 has 32 divisors (see below), whose sum is σ = 124658521344. Its totient is φ = 77815987200.

The previous prime is 100545442637. The next prime is 100545442649. The reversal of 100545442645 is 546244545001.

It is not a de Polignac number, because 100545442645 - 2³ = 100545442637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100545442598 and 100545442607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100545442649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9371254 + ... + 9381976.

It is an arithmetic number, because the mean of its divisors is an integer number (3895578792).

Almost surely, 2^100545442645 is an apocalyptic number.

It is an amenable number.

100545442645 is a deficient number, since it is larger than the sum of its proper divisors (24113078699).

100545442645 is a wasteful number, since it uses less digits than its factorization.

100545442645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11293.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 100545442645 its reverse (546244545001), we get a palindrome (646789987646).

The spelling of 100545442645 in words is "one hundred billion, five hundred forty-five million, four hundred forty-two thousand, six hundred forty-five".