100442423402555 has 64 divisors (see below), whose sum is σ = 132310330521600. Its totient is φ = 72752378549760.

The previous prime is 100442423402551. The next prime is 100442423402603. The reversal of 100442423402555 is 555204324244001.

It is not a de Polignac number, because 100442423402555 - 2² = 100442423402551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100442423402551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5142708140 + ... + 5142727670.

It is an arithmetic number, because the mean of its divisors is an integer number (2067348914400).

Almost surely, 2^{100442423402555} is an apocalyptic number.

100442423402555 is a deficient number, since it is larger than the sum of its proper divisors (31867907119045).

100442423402555 is a wasteful number, since it uses less digits than its factorization.

100442423402555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164.

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 100442423402555 its reverse (555204324244001), we get a palindrome (655646747646556).

The spelling of 100442423402555 in words is "one hundred trillion, four hundred forty-two billion, four hundred twenty-three million, four hundred two thousand, five hundred fifty-five".