100105505551 has 2 divisors, whose sum is σ = 100105505552. Its totient is φ = 100105505550.

The previous prime is 100105505503. The next prime is 100105505557. The reversal of 100105505551 is 155505501001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100105505551 is a prime.

It is a super-2 number, since 2×100105505551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100105505557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50052752775 + 50052752776.

It is an arithmetic number, because the mean of its divisors is an integer number (50052752776).

Almost surely, 2^100105505551 is an apocalyptic number.

100105505551 is a deficient number, since it is larger than the sum of its proper divisors (1).

100105505551 is an equidigital number, since it uses as much as digits as its factorization.

100105505551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 100105505551 in words is "one hundred billion, one hundred five million, five hundred five thousand, five hundred fifty-one".