100546420545 has 12 divisors (see below), whose sum is σ = 174280462356. Its totient is φ = 53624757600.

The previous prime is 100546420543. The next prime is 100546420603. The reversal of 100546420545 is 545024645001.

100546420545 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 4 + 642 + 0 + 5 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18443541249 + 82102879296 = 135807^2 + 286536^2 .

It is not a de Polignac number, because 100546420545 - 2¹ = 100546420543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100546420543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1117182406 + ... + 1117182495.

It is an arithmetic number, because the mean of its divisors is an integer number (14523371863).

Almost surely, 2^100546420545 is an apocalyptic number.

100546420545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100546420545 is a deficient number, since it is larger than the sum of its proper divisors (73734041811).

100546420545 is a wasteful number, since it uses less digits than its factorization.

100546420545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234364912 (or 2234364909 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 100546420545 in words is "one hundred billion, five hundred forty-six million, four hundred twenty thousand, five hundred forty-five".