100445212555 has 16 divisors (see below), whose sum is σ = 128888125344. Its totient is φ = 74880524800.

The previous prime is 100445212547. The next prime is 100445212561. The reversal of 100445212555 is 555212544001.

It is not a de Polignac number, because 100445212555 - 2³ = 100445212547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100445212555.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5841457 + ... + 5858626.

It is an arithmetic number, because the mean of its divisors is an integer number (8055507834).

Almost surely, 2^100445212555 is an apocalyptic number.

100445212555 is a deficient number, since it is larger than the sum of its proper divisors (28442912789).

100445212555 is a wasteful number, since it uses less digits than its factorization.

100445212555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11700206.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 100445212555 its reverse (555212544001), we get a palindrome (655657756556).

The spelling of 100445212555 in words is "one hundred billion, four hundred forty-five million, two hundred twelve thousand, five hundred fifty-five".