100555060505551 has 2 divisors, whose sum is σ = 100555060505552. Its totient is φ = 100555060505550.

The previous prime is 100555060505539. The next prime is 100555060505579. The reversal of 100555060505551 is 155505060555001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100555060505551 - 2¹⁹ = 100555059981263 is a prime.

It is a super-2 number, since 2×100555060505551² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100555060505498 and 100555060505507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100555060505951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277530252775 + 50277530252776.

It is an arithmetic number, because the mean of its divisors is an integer number (50277530252776).

Almost surely, 2^{100555060505551} is an apocalyptic number.

100555060505551 is a deficient number, since it is larger than the sum of its proper divisors (1).

100555060505551 is an equidigital number, since it uses as much as digits as its factorization.

100555060505551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 100555060505551 in words is "one hundred trillion, five hundred fifty-five billion, sixty million, five hundred five thousand, five hundred fifty-one".