100605105061055 has 64 divisors (see below), whose sum is σ = 140222020976640. Its totient is φ = 67868315109504.

The previous prime is 100605105061037. The next prime is 100605105061117. The reversal of 100605105061055 is 550160501506001.

It is not a de Polignac number, because 100605105061055 - 2⁸ = 100605105060799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1180117442 + ... + 1180202688.

It is an arithmetic number, because the mean of its divisors is an integer number (2190969077760).

Almost surely, 2^{100605105061055} is an apocalyptic number.

100605105061055 is a deficient number, since it is larger than the sum of its proper divisors (39616915915585).

100605105061055 is a wasteful number, since it uses less digits than its factorization.

100605105061055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86868.

The product of its (nonzero) digits is 22500, while the sum is 35.

Adding to 100605105061055 its reverse (550160501506001), we get a palindrome (650765606567056).

The spelling of 100605105061055 in words is "one hundred trillion, six hundred five billion, one hundred five million, sixty-one thousand, fifty-five".