105565655597 has 2 divisors, whose sum is σ = 105565655598. Its totient is φ = 105565655596.

The previous prime is 105565655593. The next prime is 105565655639. The reversal of 105565655597 is 795556565501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93277711396 + 12287944201 = 305414^2 + 110851^2 .

It is a cyclic number.

It is not a de Polignac number, because 105565655597 - 2² = 105565655593 is a prime.

It is a super-2 number, since 2×105565655597² (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 (105565655593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52782827798 + 52782827799.

It is an arithmetic number, because the mean of its divisors is an integer number (52782827799).

Almost surely, 2^105565655597 is an apocalyptic number.

It is an amenable number.

105565655597 is a deficient number, since it is larger than the sum of its proper divisors (1).

105565655597 is an equidigital number, since it uses as much as digits as its factorization.

105565655597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35437500, while the sum is 59.

The spelling of 105565655597 in words is "one hundred five billion, five hundred sixty-five million, six hundred fifty-five thousand, five hundred ninety-seven".