100505610001055 has 32 divisors (see below), whose sum is σ = 142084549564416. Its totient is φ = 66821398654464.

The previous prime is 100505610000947. The next prime is 100505610001061. The reversal of 100505610001055 is 550100016505001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100505610001055 - 2¹⁰ = 100505610000031 is a prime.

It is a super-2 number, since 2×100505610001055² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285326954 + ... + 285678983.

It is an arithmetic number, because the mean of its divisors is an integer number (4440142173888).

Almost surely, 2^{100505610001055} is an apocalyptic number.

100505610001055 is a deficient number, since it is larger than the sum of its proper divisors (41578939563361).

100505610001055 is a wasteful number, since it uses less digits than its factorization.

100505610001055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571006103.

The product of its (nonzero) digits is 3750, while the sum is 29.

Adding to 100505610001055 its reverse (550100016505001), we get a palindrome (650605626506056).

The spelling of 100505610001055 in words is "one hundred trillion, five hundred five billion, six hundred ten million, one thousand, fifty-five".