100555611061 has 2 divisors, whose sum is σ = 100555611062. Its totient is φ = 100555611060.

The previous prime is 100555611041. The next prime is 100555611073. The reversal of 100555611061 is 160116555001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98530071025 + 2025540036 = 313895^2 + 45006^2 .

It is a cyclic number.

It is not a de Polignac number, because 100555611061 - 2⁷ = 100555610933 is a prime.

It is a super-3 number, since 3×100555611061³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100555611011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277805530 + 50277805531.

It is an arithmetic number, because the mean of its divisors is an integer number (50277805531).

Almost surely, 2^100555611061 is an apocalyptic number.

It is an amenable number.

100555611061 is a deficient number, since it is larger than the sum of its proper divisors (1).

100555611061 is an equidigital number, since it uses as much as digits as its factorization.

100555611061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 100555611061 in words is "one hundred billion, five hundred fifty-five million, six hundred eleven thousand, sixty-one".