105666565034 has 4 divisors (see below), whose sum is σ = 158499847554. Its totient is φ = 52833282516.

The previous prime is 105666565027. The next prime is 105666565051. The reversal of 105666565034 is 430565666501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430565666501 = 101 ⋅4263026401.

It can be written as a sum of positive squares in only one way, i.e., 53131633009 + 52534932025 = 230503^2 + 229205^2 .

It is a super-2 number, since 2×105666565034² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105666565034.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26416641257 + ... + 26416641260.

Almost surely, 2^105666565034 is an apocalyptic number.

105666565034 is a deficient number, since it is larger than the sum of its proper divisors (52833282520).

105666565034 is an equidigital number, since it uses as much as digits as its factorization.

105666565034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52833282519.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 105666565034 in words is "one hundred five billion, six hundred sixty-six million, five hundred sixty-five thousand, thirty-four".